Description
Main cap Bolts set compatible with 2000-2015 GM LS1 LS2 LS6 LS7 LS Engines. Includes 10 inner main bolts and 10 outer main bolts for Windage tray and 10 Main Cap side bolts. These bolts are from the same supplier to GM. These replace OEM 12560272,12560273, 12556127 bolts.
Imported customer feedback
What customers reported
4.6 / 5
82 ratings
Source: Amazon. These reviews were imported from the source marketplace and are not reviews of purchases made on this website.
Vehicle information
Available fitment details
Listing compatibility notes
- About this item 10 inner Main Bolts Replaces OEM 12560272 10 Outer main bolts for windage tray Replaces OEM 12560273 10 Main cap Side Bolts Replaces OEM 12556127 Compatible with 1997-2015 Chevy Pontiac 4.
- 7L LS1 & LS6 Main cap Bolts set compatible with 2000-2015 GM LS1 LS2 LS6 LS7 LS Engines.
Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.
Exact identity, part numbers, model references, and available compatibility evidence
Buying guidance
Quick decision
An identity-first main bolts & studs listing organized around stable product references and available compatibility evidence.
Fit and size notes
- Verify the referenced part number: 12560272, 12560273, 12556127.
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Specification notes
- Canonical product: MP-US-B08WWZ8L1M
- Source product ID: B08WWZ8L1M
- Category: Replacement Parts / Engines & Engine Parts / Engine Parts / Main Bolts & Studs
- Available images: 7
- Referenced part numbers: ['12560272', '12560273', '12556127']
Before you buy
- Verify the referenced part number: 12560272, 12560273, 12556127.
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Perfect stock main bolts at a good price. Will buy again!
Sammy –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
For my 2002 Chevy Silverado 4.8 vortec engine.
customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
These bolts are the exact main bolts I was replacing. Down to manufacturer markings and stamps.
Josh W. –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Not the highest quality but better than stock. Make sure bolt holes are dry. Don’t over oil threads. Strip easily and and nuts begin to distort.
Daniel Z –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
They look identical to oem amd function as oem.I would buy again ..used them on my GM 2007 5.3l engine .. also used a set on a GM 2001 zo6 5.7l
Selena –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
The shipping folks must have used my box of bolts as a hockey puck.Bolts survived and worked good
Jeremy –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Worked well on my big cam 4.8, follow standard torquing instructions and no problems for over a year
Tim McCain –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Torqued well and the engine has been running over a year!