Grizzly Tough

This new offering from Grizzly includes many of the most popular light-duty to midrange diesel cylinder heads that most shops like yours encounter. The ISO high-quality methods used in the remanufacturing of these OEM cylinder head castings, along with the use of high-quality replacement parts, make for an unbeatable and highly durable product that helps support your service reputation.

Upgrade your cylinder head today, buy Grizzly!

Grizzly Features:

  • All tolerances accurately air gauge checked

  • Meet or exceed OE surface fi nish standards to prevent head gasket leaks

  • No aftermarket castings used to insure quality

  • Pressure tested to insure heads are free of any cracks

  • Feature upgraded inconel valves rated up to 1750° F. (vs OE 1500° F.)

  • Valve seats are concentric to the guides

  • Valve recession checked to ensure they meet specifi cations

  • Vacuum tested for quality assurance and reliability

  • Head gaskets and head bolts included for installation on most applications

  • 1 Year - Parts Only Warranty

Grizzly Cylinder Heads Featured
Part # Application Description/Notes Product
GA11000R 6.7 LITER CUMMINS Includes reman cylinder head | Includes Head gasket-head bolts GA11000R
GA12000R 6.7 LITER CUMMINS Includes reman cylinder head | Includes Head gasket-head bolts GA12000R
GA13000R 5.9 LITER | COMMON RAIL CUMMINS Includes reman cylinder head | Includes Head gasket-head bolts GA13000R
GA30000R 6.0 LITER Identified by three 8mm bolt holes | Includes reman cylinder head | Includes Updated head gasket-head bolts | Includes Updated push tubes GA30000R
GA31000R 6.0 LITER Identified by two 10mm bolt holes | Includes reman cylinder head | Includes Updated head gasket-head bolts | Includes Updated push tubes GA31000R
GA31500R 6.0 LITER | O-RING VERSION Performance upgrade with 10mm bolt holes | Includes reman “o-ring” cylinder head | Includes Updated head gaskethead bolts | Includes Updated push tubes GA31500R
GA32000R 6.0 LITER Identified by two 8mm bolt holes | Includes reman cylinder head | Includes Updated head gasket-head bolts | Includes Updated push tubes GA32000R
GA33000R 6.0 LITER Identified by eight 8mm bolt holes | Includes reman cylinder head | Includes Updated head gasket-head bolts | Includes Updated push tubes GA33000R
GA33500R 6.0 LITER | O-RING VERSION Performance upgrade with 8mm bolt holes | Includes reman “o-ring” cylinder head | Includes Updated head gasket-head bolts | Includes Updated push tubes | Dowel reducers may be required for some configurations GA33500R
GA34000R 6.7 LITER | SCORPION RIGHT SIDE EARLY Includes reman cylinder head | Includes Head gasket-head bolts GA34000R
GA35000R 6.7 LITER | SCORPION LEFT SIDE EARLY Includes reman cylinder head | Includes Head gasket-head bolts GA35000R
GA36000R 6.7 LITER | SCORPION LEFT SIDE LATE Includes reman cylinder head | Includes Head gasket-head bolts GA36000R
GA37000R 6.7 LITER | SCORPION RIGHT SIDE LATE Includes reman cylinder head | Includes Head gasket-head bolts GA37000R
GA38000R 6.4 LITER Includes reman cylinder head | Includes Head gasket-head bolts GA38000R
GA40000R 6.6 LITER | RIGHT SIDE LB7 Includes reman cylinder head | Includes Head gasket-head bolts GA40000R
GA41000R 6.6 LITER | LEFT SIDE LB7 Includes reman cylinder head | Includes Head gasket-head bolts GA41000R
GA42000R 6.6 LITER | RIGHT SIDE LLY Includes reman cylinder head | Includes Head gasket-head bolts GA42000R
GA43000R 6.6 LITER | LEFT SIDE LLY Includes reman cylinder head | Includes Head gasket-head bolts GA43000R
GA44000R 6.6 LITER | RIGHT SIDE LBZ Includes reman cylinder head | Includes Head gasket-head bolts GA44000R
GA45000R 6.6 LITER | LEFT SIDE LBZ Includes reman cylinder head | Includes Head gasket-head bolts GA45000R
GA46000R 6.5 LITER G VAN Includes reman cylinder head | Includes Head gasket-head bolts
GA47000R 6.5 LITER TRUCK Includes reman cylinder head | Includes Head gasket-head bolts
GA60000R 444TE Includes reman cylinder head | Includes Head gasket-head bolts GA60000R
GA61000R 466E Includes reman cylinder head | Head gasket-head bolts sold separately GA61000R
GA62000R 466E Includes reman cylinder head | Head gasket-head bolts sold separately GA62000R
GA63000R 466EGR Includes reman cylinder head | Head gasket-head bolts sold separately GA63000R
GA64000R MAXXFORCE DT Includes reman cylinder head | Head gasket-head bolts sold separately
GA65000R MAXXFORCE DT Includes reman cylinder head | Head gasket-head bolts sold separately

Our Products

Our newly expanded product line continues to grow. Learn more about our current line-up below.

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Need More Information?

Wanting to become a Grizzly dealer, or just have questions about fitment? If you need any assistance, part or service related, fill out the contact form and we'll be in touch.

Diesel USA Group, Diesel Parts and Repair Since 1950

Grizzly
The Tough Parts You Need!

If you are looking for competitive products that aren't going to let you down, Grizzly is the best choice!
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