





11-19 GM 6.6L Duramax Gator Heavy Duty Harmonic Damper Bolt
$29.99
- Part Number: HDB66
- Est. Ship Time: Usually Ships By Next Business Day

SSL SECURE
TRANSACTION

AUTHENTIC
PRODUCTS

GUARANTEED PREMIUM
QUALITY

A+ Rating
More from this brand
Starting From $234.99
Starting From $209.99
Starting From $394.99
Starting From $359.99
Gator Fasteners heavy duty harmonic damper bolt for 01-19 Duramax. If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fasteners.
Gator: HDB66

Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.6L together whether you're building a tow rig, race truck or just a ..
$234.99
If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fastener Rod Bolts. ..
$209.99
If you are wanting to keep your 6.0L Power Stroke on the road, you need to replace your head bolts with upgraded head st..
$394.99
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.0L together whether you're building a ..
$359.99
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.6L together whether you're building a tow rig, race truck or just a ..
$234.99
If you are wanting to keep your 6.4L Power Stroke on the road, you need to replace your head bolts with upgraded head studs. Gator Fastens are extreme..
$484.99
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.4L together whether you're building a tow rig, race truck or just a ..
$359.99
Gator Fasteners Heavy Duty Head Studs are design to hold up to the pressure of your 6.7L whether you're building a tow rig, race truck or just a daily..
$539.99
If you are wanting to keep your LP5 6.6L Duramax on the road for the long haul, you need to replace your head bolts with upgraded head studs. These he..
$574.99
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 24 Valve 5.9L together whether you're building a tow rig, race truck o..
$229.99
If you are wanting to keep your 5.9L or 6.7L Cummins on the road for the long haul, you need to replace your head bolts with upgraded head studs. ..
$399.99
If you are wanting to keep your 7.3L PMR Powerstroke on the road for the long haul, you need the high quality parts like these Gator Fastener Rod Bolt..
$149.99
Temporarily Unavailable
Fits 2001-2016 Chevy/GMC 6.6L duramax
If you are wanting maximum strength to keep your high horsepower 6.6L Duramax on ..
$0.00
When it comes to keeping your 6.6L Duramax diesel engine (LB7, LLY, LBZ, LMM, LML) together under extreme stress, the Gator Fasteners Heavy Duty Head ..
$524.99
If you are wanting to keep your 6.0L or 6.4L Power Stroke on the road for the long haul, you need the high quality parts like these Gator Fastener Rod..
$124.99
Restore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7/16" Competition & Race Performance XD316. The factory..
$378.95
DFC engines may take up to 14 weeks to ship. Please contact us to verify lead times if you are in a hurry, before purchasing.
F..
$11,537.73
Fits: 2011-2016 GM 6.6L Duramax LML/LGHRefresh the engine in your 2011-2016 GM 6.6L Duramax LML/LGH when you install the Mahle Piston With Rings. Mahl..
$221.37
Backordered with No ETA (Updated on 4/30/2025)
Fits: 2011-2016 GM 6.6L Duramax LML/LGH
Refresh the engine in your 2011-2016 GM 6.6L ..
$210.30
Fits: 2011-2016 GM 6.6L Duramax LML/LGH
Refresh the engine in your 2011-2016 GM 6.6L Duramax LML/LGH when you install the Mahle Piston With Rings. ..
$221.37
DHD's heavy duty balancer installer is a must for customers installing aftermarket dampers. Unlike the OE balancer, most performance Duramax dampers a..
$325.00
Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler fl..
$99.00
DMAX XD Platinum Xtreme Motor MountsFits 2001-2010 Chevy/GMC 2500/3500 HDPart# XD-MM-0110The Xtreme torque produced by the Duramax diesel destroys OE ..
$375.24
Replace the failing oil cooler in your 2001-2016 GM 6.6L Duramax with the Dorman 918-400 Engine Oil Cooler. When your oil cooler is not functioning pr..
$346.60
Strengthen the bottom end in your 2001-2016 GM 6.6L Duramax with the Wagler WCPC6641 Billet Main Caps. Designed, and machined in-house at Wagler Compe..
$750.00
Upgrade the valvetrain in your 2001-2016 GM 6.6L Duramax engine with the Wagler WCPC6643 Dual Valve Spring Kit With Steel Retainers. Designed to work ..
$600.00
Upgrade the valvetrain in your 2001-2016 GM 6.6L Duramax with the Wagler WCPC6664 Pushrods. Built from 3/8" x .135 wall 4130 Chromoly, these push rods..
$350.00
The Wagler WCPC6686-1 Alternate Fire Street Stage 1 Camshaft provides your 2001-2016 GM 6.6L Duramax with increased driveability and increased perform..
$975.00
The Wagler WCPC6686-1 Street Stage 1 Camshaft provides your 2001-2016 GM 6.6L Duramax with increased driveability and increased performance. This cam ..
$600.00
The Wagler Duramax Entry Level Rotating Assembly is the ideal package for a stock workhorse or a hot street truck making up to 1,000 HP. Even if the p..
$5,175.47