At Diesel Pro, we offer a full line of parts for the V71 series, at low, factory direct pricing. Shop with us today and you will see why we are a better buying experience.

We offer cylinder heads for all of the V71 engines, along with seals, gaskets, springs, and more. Simply click above to see a full listing of our parts, conveniently grouped by engine type, or select your engine below to see items that our customers usually purchase together. Still not sure what to buy? Scroll down to see some frequently asked questions.

See Frequently Purchased Items by Clicking On Your Engine Model:   6V71     8V71     12V71     16V71

Previously Asked Questions

I have a 12V71 engine that I need to replace the cylinder head. Do you sell the cylinder head in pairs?
We sell our cylinder heads individually, in the case that only one malfunctions. If you have a 12V71, which uses two 6-cylinder heads, and you are doing a complete overhaul, then you will have to purchase both.

I suspect my rocker arms are not working properly. What could cause this?
The V71 series has three rocker arms per cylinder. One of arms control the injector plunger, while the other two control the exhaust valves. These are controlled by the camshaft, so be sure to also check the camshaft, cam followers, and push rods to make sure they are working properly as a unit.

How do I know if the cylinder head had warped?
A severely warped cylinder head needs to be replaced as soon as possible. Judging the degree of warpage can be done with use of the feeler gauge (we have them available for sale, if you do not already own one, it can be a valuable tool.) Use the feeler gauge with a straight edge, and check the bottom face of the cylinder head. Then take about eleven measurements, six going lengthwise (the longer measurement) and five going across. The measurements should go along the far edges, and along the line of holes for the valves. Measuring lengthwise, the most an 6V71 cylinder head can warp is .0055 inches, the most an 8V71 cylinder head can warp is .008 inches, and the most an 12V71 cylinder head can warp is .01 inches. The most any of these cylinder heads can warp is .004 inches when measuring across. If the cylinder head exceeds these warpage guidelines, the unit may not function correctly, and could cause engine damage, and so it should be replaced.

Can you solder a cylinder head that has cracked?
No. This is very risky and should be avoided to prevent unnecessary damage to the other parts of the engine.

What else is needed when replacing a cylinder head?
If you are replacing a cylinder head, you should also change the gaskets and seals. We offer gasket kits that are custom made for each engine, find the one for yours by selecting your engine above.

Detroit Diesel 6V71 Cylinder Head Parts

6V71 Rebuilt Cylinder Head (Bare) | See Product
6V71 Rebuilt Cylinder Head (With Valves and Springs) | See Product

6V71 Head Gasket Kit | See Product

6V71 Engine Valve | See Product
6V71 Engine Valve Seal | See Product
6V71 Push Rod for Cam Follower | See Product

6V71 Guide for Cam Follower | See Product
6V71 Guide for Cam Follower | See Product

6V71 Rocker Arm (Left) | See Product
6V71 Rocker Arm (Right) | See Product
6V71 Rocker Arm Injector | See Product


See All 6V71N (Natural or Non-Turbocharged Engine) Parts for Sale         See All 6V71T (Turbocharged Engine) Parts for Sale

Detroit Diesel 8V71 Cylinder Head Parts

8V71 Cylinder Head (Bare) | See Product
8V71 Cylinder Head (With Valves and Springs) | See Product

8V71 Head Gasket Kit | See Product

8V71 Exhaust Valve | See Product
8V71 Valve Seal | See Product

8V71 Push Rod for Cam Follower | See Product
8V71 Cam Guide | See Product

8V71 Rocker Arm (Left) | See Product
8V71 Rocker Arm (Right) | See Product
8V71 Rocker Arm (Injector) | See Product

See All 8V71N (Natural or Non-Turbocharged Engine) Parts for Sale         See All 8V71T (Turbocharged Engine) Parts for Sale

Detroit Diesel 12V71 Cylinder Head Parts

12V71 Cylinder Head (Bare) | See Product
Two Valve 12V71 Cylinder Head (With Valves and Springs) | See Product

12V71 Head Gasket Kit | See Product

12V71 Exhaust Valve | See Product
12V71 Valve Seal | See Product

12V71 Push Rod for Cam Follower | See Product
12V71 Guide for Cam Follower | See Product

12V71 Rocker Arm (Left) | See Product
12V71 Rocker Arm (Right) | See Product
12V71 Rocker Arm Injector | See Product

See All 12V71N (Natural or Non-Turbocharged Engine) Parts for Sale         See all 12V71T (Turbocharged) Parts for Sale

Detroit Diesel 16V71 Cylinder Head Parts

16V71 Cylinder Head (Bare) | See Product
16V71 Cylinder Head (With Valves and Springs) | See Product

16V71 Head Gasket Kit | See Product

16V71 Exhaust Valve | See Product
16V71 Engine Valve Seal | See Product

16V71 Push Rod for Cam Follower | See Product
16V71 Guide for Cam Follower | See Product

16V71 Rocker Arm (Left) | See Product
16V71 Rocker Arm (Right) | See Product
16V71 Rocker Arm Injector | See Product

See all 16V71N (Natural of Non-Turbocharged Engine) Parts for Sale         See all 16V71T (Turbocharged Engine) Parts for Sale