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Car Engine Parts Online

From air filters to fuel delivery, online engine parts are essential for automotive repairs, maintenance, and even performance upgrades. Whether you’re an experienced mechanic or automotive enthusiast working on your daily driver or restoring a classic, Sixity Auto has you covered. Dive into our catalog below to find the car engine parts you need to keep your vehicle running smoothly.

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  1. NGK V-Power
    2 pc NGK V-Power 5077 ZGR5A Spark Plugs
    Special Price $7.09 Regular Price $9.99
    NGK / NTK
  2. NGK Iridium IX
    2 pc NGK Iridium IX 2477 ZFR5FIX-11 Spark Plugs
    Special Price $15.41 Regular Price $21.99
    NGK / NTK
  3. NGK Laser Iridium
    2 pc NGK Laser Iridium 4212 ILFR6G-E Spark Plugs
    Special Price $23.69 Regular Price $33.99
    NGK / NTK
  4. NGK Laser Platinum
    2 pc NGK Laser Platinum Spark Plugs for 1986-1995 Mazda RX-7 1.3L R2
    Special Price $25.39 Regular Price $35.99
    NGK / NTK
  5. NGK Laser Iridium
    2 pc NGK Laser Iridium 93188 LMAR9AI-10 Spark Plugs
    Special Price $24.91 Regular Price $35.99
    NGK / NTK
  6. Walker Exhaust System Hanger Insulator
    2 pc Walker Muffler Assm Exhaust System Insulators for 1995-2004 Toyota Tacoma 2.7L 3.4L L4 V6
    Special Price $16.39 Regular Price $22.99
    Walker
  7. NGK Laser Iridium
    2 pc NGK Laser Iridium 4757 IZFR6N-E Spark Plugs
    Special Price $18.71 Regular Price $26.99
    NGK / NTK
  8. NGK Laser Iridium
    2 pc NGK Laser Iridium 3657 IZFR5K11 Spark Plugs
    Special Price $22.73 Regular Price $31.99
    NGK / NTK
  9. Champion Spark Plug
    2 pc Champion Copper Plus 936M L78YC Spark Plugs
    Special Price $5.30 Regular Price $7.99
    Champion
  10. NGK Spark Plug
    2 pc NGK V-Power Racing 2891 R5670-7 Spark Plugs
    Special Price $10.76 Regular Price $14.99
    NGK / NTK
  11. DENSO Spark Plug
    2 pc DENSO Iridium TT 4715 ITF16TT Spark Plugs
    Special Price $17.56 Regular Price $24.99
    DENSO
  12. NGK Spark Plug
    2 pc NGK Laser Iridium 94201 SILZKGR8B8S Spark Plugs
    Special Price $33.01 Regular Price $46.99
    NGK / NTK
  13. NGK Iridium IX
    2 pc NGK Iridium IX 6482 CR10EIX Spark Plugs
    Special Price $15.10 Regular Price $21.99
    NGK / NTK
  14. NGK Ignition Coil
    2 pc NGK Ignition Coils for 1990-2001 Ford Ranger 2.3L 2.5L L4
    Special Price $143.62 Regular Price $204.99
    NGK / NTK
  15. NGK Iridium IX
    2 pc NGK Iridium IX 6509 LTR6IX-11 Spark Plugs
    Special Price $15.41 Regular Price $21.99
    NGK / NTK
  16. NGK Diesel Glow Plug
    2 pc NGK Glow 6528 Y-114T Diesel Glow Plugs
    Special Price $15.74 Regular Price $21.99
    NGK / NTK
  17. NGK Spark Plug
    2 pc NGK Standard 92222 LMAR9G Spark Plugs
    Special Price $17.00 Regular Price $23.99
    NGK / NTK
  18. NGK Standard
    2 pc NGK Standard 4313 LMAR8A-9 Spark Plugs
    Special Price $18.41 Regular Price $25.99
    NGK / NTK
  19. NGK Spark Plug
    2 pc NGK Laser Iridium 96964 DILKAR7H11GS Spark Plugs
    Special Price $31.10 Regular Price $43.99
    NGK / NTK
  20. NGK V-Power
    2 pc NGK V-Power 2851 GR5 Spark Plugs
    Special Price $5.45 Regular Price $7.99
    NGK / NTK
  21. NGK Standard
    2 pc NGK Standard 3365 CMR6H Spark Plugs
    Special Price $8.67 Regular Price $11.99
    NGK / NTK
  22. NGK Standard
    2 pc NGK Standard 2095 BKR7EKC-N Spark Plugs
    Special Price $15.17 Regular Price $21.99
    NGK / NTK
  23. NGK Laser Platinum
    2 pc NGK Laser Platinum 3199 BKR6EQUP Spark Plugs
    Special Price $15.69 Regular Price $21.99
    NGK / NTK
  24. MAHLE Catalytic Converter Gasket
    2 pc MAHLE Inlet Catalytic Converter Gaskets for 1995-2013 Toyota 4Runner T100 Tacoma 3.4L 4.0L 4.7L V6 V8
    Special Price $16.60 Regular Price $23.99
    MAHLE
  25. NGK Laser Iridium
    2 pc NGK Laser Iridium 4904 ILFR6T11 Spark Plugs
    Special Price $18.11 Regular Price $25.99
    NGK / NTK
  26. NGK Laser Platinum
    2 pc NGK Laser Platinum Spark Plugs for 1986-1995 Mazda RX-7 1.3L R2
    Special Price $25.79 Regular Price $36.99
    NGK / NTK
  27. Beck/Arnley PCV Valve
    2 pc Beck/Arnley PCV Valves for 2008-2013 INFINITI G37 3.7L V6
    Special Price $34.50 Regular Price $48.99
    Beck/Arnley Auto Parts
  28. MAHLE Engine Cylinder Head Bolt Set
    2 pc MAHLE Cylinder Head Bolt Sets for 2011-2021 Ram 1500 2500 3500 4000 4500 5500 Classic 5.7L 6.4L V8
    Special Price $82.38 Regular Price $117.99
    MAHLE
  29. MAHLE Engine Cylinder Head Bolt Set
    2 pc MAHLE Cylinder Head Bolt Sets for 2011-2022 Jeep Cheroke Cherokee Gladiator Grand L 3.2L 3.6L V6
    Special Price $100.05 Regular Price $142.99
    MAHLE
  30. NGK Ignition Coil
    2 pc NGK Ignition Coils for 1997-2000 Toyota Tacoma 2.4L 2.7L L4
    Rating:
    100%
    1  Review
    Special Price $118.47 Regular Price $168.99
    NGK / NTK
  31. MAHLE Engine Cylinder Head Gasket
    2 pc MAHLE Engine Cylinder Head Gaskets for 2008-2010 Ford D Duty F-250 F-350 F-450 F-550 Super 6.4L V8
    Special Price $150.00 Regular Price $213.99
    MAHLE
  32. NGK Spark Plug
    2 pc NGK Laser Iridium 95112 ILZKAR8H8S Spark Plugs
    Special Price $24.78 Regular Price $34.99
    NGK / NTK
  33. NGK Iridium IX
    2 pc NGK Iridium IX 6747 BR8EIX SOLID Spark Plugs
    Special Price $15.10 Regular Price $21.99
    NGK / NTK
  34. NGK Ignition Coil
    2 pc NGK 48939 U5295 Ignition Coils
    Special Price $102.43 Regular Price $145.99
    NGK / NTK
  35. NGK Spark Plug
    2 pc NGK Standard 4004 BMR4A SOLID Spark Plugs
    Special Price $5.64 Regular Price $7.99
    NGK / NTK
  36. NGK Iridium IX
    2 pc NGK Iridium IX 2316 DCPR9EIX Spark Plugs
    Special Price $15.41 Regular Price $21.99
    NGK / NTK
  37. NGK Standard
    2 pc NGK Standard 6689 CR5EH-9 Spark Plugs
    Special Price $18.24 Regular Price $25.99
    NGK / NTK
  38. NGK Ignition Coil
    2 pc NGK Ignition Coils for 1997-1999 Toyota 4Runner 2.7L L4
    Rating:
    80%
    1  Review
    Special Price $120.89 Regular Price $172.99
    NGK / NTK
  39. NGK Spark Plug
    2 pc NGK Standard 4013 BMR2A SOLID Spark Plugs
    Special Price $5.76 Regular Price $7.99
    NGK / NTK
  40. NGK Iridium IX
    2 pc NGK Iridium IX 2202 DPR8EIX-9 Spark Plugs
    Rating:
    100%
    1  Review
    Special Price $15.10 Regular Price $21.99
    NGK / NTK
  41. NGK Iridium IX
    2 pc NGK Iridium IX 3981 BR9EIX Spark Plugs
    Special Price $15.10 Regular Price $21.99
    NGK / NTK
  42. Beck/Arnley Fuel Injection Throttle Body Mounting Gasket
    2 pc Beck/Arnley FI Throttle Body Mounting Gaskets for 2008-2013 INFINITI G37 3.7L V6
    Special Price $19.57 Regular Price $27.99
    Beck/Arnley Auto Parts
  43. NGK Spark Plug
    2 pc NGK Laser Iridium 92315 SILZKR7E11 Spark Plugs
    Special Price $23.21 Regular Price $32.99
    NGK / NTK
  44. NGK Spark Plug
    2 pc NGK Laser Iridium 96956 LMAR7DI-10 Spark Plugs
    Special Price $25.42 Regular Price $35.99
    NGK / NTK
  45. DENSO Spark Plug
    2 pc DENSO Iridium Long Life 3476 DK20PR-D13 Spark Plugs
    Special Price $33.60 Regular Price $47.99
    DENSO
  46. DENSO Spark Plug
    2 pc DENSO Standard U-Groove 4030 W24ES-U Spark Plugs
    Special Price $4.78 Regular Price $6.99
    DENSO
  47. Champion Spark Plug
    2 pc Champion Copper Plus 404 RN12YC Spark Plugs
    Special Price $5.35 Regular Price $7.99
    Champion
  48. NGK Standard
    2 pc NGK Standard 7131 BPR6ES Spark Plugs
    Special Price $5.81 Regular Price $7.99
    NGK / NTK
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High-Quality Engine Parts for Your Motor Vehicle

Sixity Auto works with top brands to build our inventory of OEM-quality engine parts online, ensuring you have access to reliable and cost-effective components. We promise that every part fits as advertised and meets or exceeds expectations. 

We want to make sure that whether you’re performing routine maintenance or making a major repair, you can find the best parts at a fair price. Our focus is always on delivering affordable solutions without compromising the strict tolerances for your vehicle’s longevity. 

Fast, Reliable Shipping

We know that when you order car engine parts, you need them right away. Our network of US warehouses enables us to offer fast, dependable shipping across the US, with 99% of orders shipping within one business day. Many of the items in our catalog also come with free shipping. 

A Reputation You Can Count On

Sixity Auto has been in business for over 20 years and has shipped over 10 million engine parts from our online storefront. Our customers praise our products and timely delivery. If you have any questions about us or our inventory, contact our US-based customer service department. We’re happy to be of service.

Frequently Asked Questions

How fast will your engine parts arrive?

Timing is a top priority. We use our extensive network of warehouses to ensure speedy delivery, with most orders shipping within one business day. That said, the exact delivery time will depend on the parts ordered, your location, and the delivery options selected during checkout.

Are the parts on Sixity Auto comparable to what I’d find in a store?

Absolutely! We stock only top-quality OEM-replacement auto parts that meet or exceed original equipment specifications. The crucial difference between Sixity Auto and the other guys is price. We offer these high-quality parts at prices typically lower than those at your local auto parts store.

Do you offer any discounts for the engine parts sold online?

Yes. We’re proud to offer a 10% discount on everything for military personnel. 

Filter By Part Details
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Part Type
  1. Air Cleaner Mounting Gasket 6items
  2. Air Filter 125items
  3. Catalytic Converter Air Tube 7items
  4. Catalytic Converter Gasket 65items
  5. Diesel Glow Plug 22items
  6. Direct Ignition Coil 25items
  7. Direct Ignition Coil Boot 138items
  8. Distributor Mounting Gasket 2items
  9. Engine Camshaft Plug 2items
  10. Engine Camshaft Plug Set 2items
  11. Engine Camshaft Repair Sleeve 206items
  12. Engine Camshaft Seal 149items
  13. Engine Crankcase Breather Cap 3items
  14. Engine Crankshaft Seal 18items
  15. Engine Crankshaft Seal Housing Bolt 2items
  16. Engine Cylinder Head Bolt Set 73items
  17. Engine Cylinder Head Bolt Washer Set 2items
  18. Engine Cylinder Head Dowel Pin 1item
  19. Engine Cylinder Head Gasket 76items
  20. Engine Harmonic Balancer Repair Sleeve 2items
  21. Engine Intake Manifold Gasket 1item
  22. Engine Intake Manifold Gasket Set 21items
  23. Engine Mount 37items
  24. Engine Mount Bolt 32items
  25. Engine Mount Bracket Bolt Set 19items
  26. Engine Oil Dipstick Tube Seal 5items
  27. Engine Oil Drain Plug Gasket 1item
  28. Engine Oil Filler Cap 8items
  29. Engine Oil Passage Screw Plug 2items
  30. Engine Oil Pump Bolt 8items
  31. Engine Oil Pump Shaft Retainer 2items
  32. Engine Torque Damper 5items
  33. Engine Valve Cover Bolt Kit 1item
  34. Engine Valve Cover Gasket 2items
  35. Engine Valve Cover Gasket Set 3items
  36. Engine Valve Cover Grommet 2items
  37. Engine Valve Cover Grommet Set 4items
  38. Engine Valve Stem Oil Seal Set 84items
  39. Engine Variable Timing Solenoid 8items
  40. Engine Variable Timing Sprocket 18items
  41. Engine Variable Valve Timing (VVT) Adjuster Magnet 13items
  42. Engine Variable Valve Timing (VVT) Solenoid 160items
  43. Exhaust Bolt and Spring 72items
  44. Exhaust Bracket 54items
  45. Exhaust Clamp 772items
  46. Exhaust Flange 6items
  47. Exhaust Gas Recirculation (EGR) Tube Gasket 3items
  48. Exhaust Manifold Gasket Set 2items
  49. Exhaust Muffler 82items
  50. Exhaust Muffler Clamp 62items
  51. Exhaust Muffler Strap 65items
  52. Exhaust Pipe Connector 10items
  53. Exhaust Pipe Flange Gasket 463items
  54. Exhaust Pipe Spout 25items
  55. Exhaust System Hanger 157items
  56. Exhaust System Hanger Insulator 760items
  57. Exhaust Tail Pipe Clamp 2items
  58. Fuel Filter 7items
  59. Fuel Injection Nozzle O-Ring 9items
  60. Fuel Injection Nozzle O-Ring Kit 4items
  61. Fuel Injection Plenum Gasket 3items
  62. Fuel Injection Plenum Gasket Set 2items
  63. Fuel Injection Pressure Damper 1item
  64. Fuel Injection Throttle Body Mounting Gasket 24items
  65. Fuel Injector 26items
  66. Fuel Injector O-Ring Kit 22items
  67. Fuel Pump Gasket 27items
  68. Ignition Coil 602items
  69. Ignition Coil Bolt 4items
  70. Intercooler Mount 41items
  71. PCV Valve 25items
  72. Secondary Air Injection Solenoid 26items
  73. Spark Plug 2108items
  74. Spark Plug Tube Seal 7items
  75. Spark Plug Tube Seal Set 3items
  76. Turbocharger Mounting Gasket Set 2items
  77. Turbocharger Oil Line Gasket 1item
  78. Vacuum Hose 4items
  79. Vapor Canister Purge Valve 1item
  80. VVT Solenoid 46items
Brand
  1. Autolite 59items
  2. Beck/Arnley 108items
  3. Bosch 171items
  4. Champion 476items
  5. DENSO 358items
  6. E3 29items
  7. FRAM 103items
  8. Hitachi Astemo 268items
  9. Holstein 61items
  10. MAHLE 553items
  11. MotoRad 11items
  12. National 270items
  13. NGK 1733items
  14. Rein 270items
  15. Stabilus 5items
  16. Timken 93items
  17. Walker 2317items
  18. Walker Products 4items
  19. Wells 3items
Price
$
-
Pack Size
  1. 1 210867items
  2. 2 6892items
  3. 3 2328items
  4. 4 29129items
  5. 5 1160items
  6. 6 39416items
  7. 7 16items
  8. 8 32845items
  9. 10 2618items
  10. 11 1item
  11. 12 2879items
  12. 14 3items
  13. 16 1267items
  14. 24 262items
Part Placement
  1. Center 15items
  2. Converter 11items
  3. Converter Center To Front 2items
  4. Converter Center To Y-Pipe 1item
  5. Converter Front Left To Rear Left 3items
  6. Converter Inlet 37items
  7. Converter Inlet Front 9items
  8. Converter Inlet Left 9items
  9. Converter Left To Right 1item
  10. Converter Rear 10items
  11. Converter Rear Left 1item
  12. Converter Rear Left To Int Pipe 1item
  13. Converter Right To Rear 1item
  14. Converter To Extension Pipe 1item
  15. Converter To Muffler 1item
  16. Converter To Resonator 1item
  17. Converter To Resonator Assm 1item
  18. Engine 5items
  19. Exhaust 14items
  20. Exhaust Left 6items
  21. Exhaust Right 5items
  22. Extension Pipe 2items
  23. Extension Pipe To Muffler 5items
  24. Front 85items
  25. Front Converter To Center 1item
  26. Front Converter To Rear Converter 4items
  27. Front Inlet 1item
  28. Front Muffler 2items
  29. Front Pipe 12items
  30. Front Pipe Front to Rear 1item
  31. Front Pipe Inlet 21items
  32. Front Pipe Inlet Front 4items
  33. Front Pipe Left 14items
  34. Front Pipe Rear To Converter 2items
  35. Front Pipe Right 18items
  36. Front Pipe Right To Muffler Right 10items
  37. Front Pipe To Converter 1item
  38. Front Pipe To Y-Pipe 1item
  39. Front Right 1item
  40. H-Pipe To Muffler 16items
  41. Inlet 13items
  42. Int Pipe 46items
  43. Int Pipe Center 2items
  44. Int Pipe Rear 6items
  45. Int Pipe To Muffler 12items
  46. Int Pipe To Muffler Assm 3items
  47. Intake 26items
  48. Intake & Exhaust 59items
  49. Intake (Front) 1item
  50. Intake - Left 2items
  51. Intake - Right 4items
  52. Intake Left 5items
  53. Intake Right 7items
  54. Inter Pipe To Resonator 1item
  55. Left 9items
  56. Left Converter To Front Pipe 1item
  57. Lower 24items
  58. Manifold To Converter 1item
  59. Muffler 117items
  60. Muffler Assm 105items
  61. Muffler Assm Front 4items
  62. Muffler Assm Left 15items
  63. Muffler Assm Rear 4items
  64. Muffler Assm Right 14items
  65. Muffler Assm To Muffler Assm 2items
  66. Muffler Assm To Spout 3items
  67. Muffler Assm To Tail Pipe 17items
  68. Muffler Front 2items
  69. Muffler Left 6items
  70. Muffler Rear 2items
  71. Muffler Rear To Tail Pipe 1item
  72. Muffler Right 7items
  73. Muffler To Muffler Assm 2items
  74. Muffler To Tail Pipe 57items
  75. Muffler To Tail Pipe Front 1item
  76. Outlet 7items
  77. Rear 96items
  78. Rear Forward 2items
  79. Rear Muffler 16items
  80. Rear Rearward 3items
  81. Resonator 1item
  82. Resonator Assm 101items
  83. Resonator Assm Rear 4items
  84. Resonator Assm To Muffler 1item
  85. Resonator Assm To Muffler Assm 2items
  86. Resonator To Extension Pipe 1item
  87. Right 15items
  88. Right Converter To Muffler 2items
  89. Right Converter To Y-Pipe 1item
  90. Right Front Pipe To Muffler 5items
  91. Tail Pipe 109items
  92. Tail Pipe Left 8items
  93. Tail Pipe Right 6items
  94. Upper 30items
  95. Various 2545items
  96. Y-Pipe 6items
  97. Y-Pipe Inlet Right 3items
  98. Y-Pipe Inlets 83items
  99. Y-Pipe Rear To Muffler 1item
  100. Y-Pipe To Converter 9items
  101. Y-Pipe To Int Pipe 10items
  102. Y-Pipe To Int Pipe Front 1item
  103. Y-Pipe To Muffler 3items
Stock
  1. In Stock 5626items
  2. Out of Stock 1266items
free shipping on eligible items at sixityauto.com

FAST & FREE SHIPPING
On eligible items

At SixityAuto.com, we offer free shipping on thousands of eligible items. We also ship FAST. Over 99% of all items ordered will ship within one business day. Plus, we ship from our strategically located warehouses on the East and West Coast to save precious shipping time.

100% fitment guarantee at sixityauto.com

100% FITMENT GUARANTEE
Your parts will fit as advertised

Shop with confidence, knowing that your purchase from Sixity Auto will fit your vehicle. If after purchase you determine that your part does not fit the vehicle we advertised, simply contact us to initiate a return. We want your parts to fit!

5-star customer rated at sitejabber

RAVE REVIEWS
5-Star Rated on Sitejabber

Don't take it from us - check out our feedback from our customers! Sixity Auto has partnered with Sitejabber, the industry leader in tracking customer loyalty and feedback, to bring genuine product and customer service reviews.

Plus read thousands of authentic reviews on Trustpilot, Google, Reseller Ratings, the Better Business Bureau, and more!

call sixity auto 8am to 8pm Eastern, Monday through Friday

WE'RE HERE TO HELP
(888) 679-6279
Monday through Friday, 8am-8pm Eastern

We speak your language. Our staff has decades of experience selling auto parts to enthusiasts like you. Whether it's for your car, truck, or van, we have staff on hand that can answer your questions and make sure you get the part you're looking for.

For phone sales or help with product fitment questions, our U.S.-based customer service staff in California and Indiana is available weekdays, 8am-8pm ET.

tax exempt shopping available for businesses

BUILT FOR BUSINESS
Tax-exempt shopping available

Sixity Auto works with a wide range of business customers—from repair shops and dealerships to fleet operators, government organizations, and others that purchase parts for resale or operational use.

If you are a qualified tax-exempt or resale customer, submit your documentation and we'll set you up for tax-free shopping. Check out all the details here.

military members and vets save 10% every day

MILITARY DISCOUNT
Save 10% on every purchase

Sixity Auto is proud to support our Active-Duty Service Members, Vets, and their immediate families. To show a token of our thanks, we extend a 10% discount on your entire purchase, every single day.

We use VerifyPass (formerly ID Discount) to help us manage our Military Discount program. Click here for all the details!

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© 2026 Sixity, Inc. Part of Proximity Group, an American-owned and operated online retailer. All Rights Reserved.

© 2026 Sixity, Inc. Part of Proximity Group, an American-owned and operated online retailer. All Rights Reserved.