XDP XD386 Performance Valve Springs & Retainer Kit 01-16 GM 6.6L Duramax
SKU: 98793977517

XDP XD386 Performance Valve Springs & Retainer Kit 01-16 GM 6.6L Duramax

Sale price$304.18 Regular price$337.98
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

XDP XD386 Performance Valve Springs & Retainer Kit 01-16 GM 6.6L DuramaxAdd performance, durability, and longevity to your Duramax by upgrading with this complete valve spring and retainer kit from XDP. The XDP Performance Valve Spring & Retainer Kit features a conical design for better valve control over the standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped to ensure quality and long term

Add performance, durability, and longevity to your Duramax by upgrading with this complete valve spring and retainer kit from XDP. The XDP Performance Valve Spring & Retainer Kit features a conical design for better valve control over the standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped to ensure quality and long term reliability. Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98793977517

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John Mooney
Bozeman, US
★★★★★ 5
Good deal on spark plugs
They worked perfectly for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
B
Verified Purchase
Brett Patterson
Port Orchard, US
★★★★★ 5
Better running mower
Seems to work fine and runs great
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Reviewed in the United States on May 15, 2026
R
Verified Purchase
Rita Viera
Battle Creek, US
★★★★★ 4
Perfect Spark Plug
Perfect match for my lawnmower. Worked as soon as I placed it on. Great product. Thank you Amazon for the product. Fast, correct product, and affordable
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Reviewed in the United States on April 29, 2026
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Verified Purchase
Bluegrass Picker
Grantham, US
★★★★★ 5
Cost-effective alternative that works well..
I used these spark plugs on my 2018 Cub Cadet XT2 riding mower as part of the spring preparation. The spark plugs were well packed and arrive in great shape and at the appropriate gap. No issues with starting or operating the mower. These Harbot plugs turned out to be a great cost-effective option for me.
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Reviewed in the United States on April 4, 2026
S
Verified Purchase
shayna20
Dallas, US
★★★★★ 5
They work great.
The spark plugs are an exact replacement for my riding mower.
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Reviewed in the United States on May 10, 2026

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