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Welcome to Hans Diesel Shop

Welcome to Hans Diesel Shop. Hans Diesel Shop specializes in rebuilding diesel pumps, injectors and turbochargers. We also have a large number of parts for Cummins 4BT 8v and 6BT 12v, and we rebuild those engines. Why buy parts from people who don't also work on these engines? A lot of people can import cheap parts from Asia and sell them at rock bottom prices, but what do you do, when you have a problem? What do you do when the new pump that you bought won't start your vehicle? They have never installed a pump. They can't answer your questions. We now stock a few hundred different parts for various Cummins engines like gaskets, gears, pumps, injectors, bearings and rings. If you are rebuilding a Cummins engine, you have come to the right place. I not only sell these parts, but I install them on rebuilt engines as well.

If you don't want to rebuild your Cummins engine yourself, we have 4BT, 6BT and 6CT longblocks. All you need to do is put your accessories on and you should have a new engine. We can also provide complete 4BT and 6BT engines with pump and injectors. These engines have been test run so you know they work.

Featured Product : Rebuilt Cummins 4BT Engine with Pump and Injectors $2700 + $1500 core charge

Rebuilt Cummins 4BT

Complete rebuilt Cummins 4B/4BT Engine with rebuilt pump and injectors. This is a complete running engine ready to drop in for many years of service. If you have a conversion project and are looking for a freshly rebuilt 4BT engine, this is what you are looking for. Sold with a $1500 core charge. Click the picture to see a video. Click read more right below for more info. If you don't want the hassle of installing the injector pump youself, this is what you need. The engine has been test run to check for compression and leaks and then crated up.

New Product: New Cummins 4BT 8v 6BT 12v 6CT 12v Longblocks $2900

New Cummins 6BT Longblocks

We have new longblocks in stock to replace your worn out 4BT, 6BT or 6CT engines. If you have an old wornout 4BT (8 valve), 6BT (12 valve) or 6CT (12 valve) engine, these new longblocks will get you going again. I have longblocks fitting both rotary and inline p-pumps. Just transfer your accessories over, like your pump and injectors, and you will be up and running again. I've been selling these for a few years with no long term complaints.

Featured Product: Rebuilt Ford 6.7 Powerstroke Injectors

Ford 6.7 Injectors

Rebuilt Diesel Injectors for Ford 6.7 Powerstroke Diesel. If you have a rough running engine or low rail pressure, some new injectors should help you out. I can rebuild them for $129 + core for one injector or $799 + core for a set of 8. I have all the equipment to test these and I've sold thousands of these injectors.

New Product: Cummins Cylinder Heads

New Cummins Cylinder Heads

New cylinder heads for Cummins 6BT 12v and 4BT 8v. I also have a 6CT 12v head. There are both bare heads sold without valves and complete heads with valves, springs, valve stem seals and retainers installed. If you have a cracked head or a blown valve, this will get your engine running. These are all cast iron heads so they are normally pretty tough. I also stock the complete valvetrain for 6BT 12v and 24v engines as well as the 6CT 8.3 engines.

Pete Rothenbacher - Celebrating 20 Years Selling and Rebuilding Diesel Parts

Pete Rothenbacher

It's now been more than 20 years since I started selling parts for diesel engines. My first product was a timing adapter for the Bosch VE pumps. I started working with older VW diesel pumps and injectors that were fully mechanical, because I had been driving them since I was a teenager. My father Hans bought his first VW Rabbit Diesel in the early 80's, and I learned to drive on his 1986 VW Jetta diesel. I have always tried to sell good quality products at a great price. I believe that customers should have a choice of affordable, good quality aftermarket parts instead of overpriced OEM parts. While 20 years have gone by, I am still learning new things, trying to find new ways of serving the customer, and developing new products.



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All Questions and Answers
                 



Here are some questions and answers from the Cummins Repair Manual:


Why replace an exhaust manifold on a Cummins 5.9 6BT 12v engine?
Should oil galley plugs always be replaced on the Cummins B Series engines?
What is the spec for the oil galley holes on the Cummins B Series engines?
How should the oil galley plugs be installed on the Cummins B series engines?
Can the block be decked on the Cummins B Series engines?
What is the torque spec for main bearing cap bolts on Cummins B Series engines?
What is the main bearing bore Inner Diameter (ID) for Cummins C-Series engines without bearings?
What is the main bearing bore inner diameter (ID) for Cummins B-Series engines without bearings?
What is maximum oil seal wear groove on Cummins B series engines?
What is maximum oil seal wear groove on Cummins B series engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins B-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins C-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins C-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins B-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins C-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter minimum OD for Cummins B-Series Engines?
What is the Crankshaft Rod Bearing Journal diameter Out of Round spec for Cummins B and C series Engines?
What is the Crankshaft bearing journal Diameter for Cummins C-Series engines?
What is the Crankshaft bearing journal Diameter for Cummins B-Series engines?
What is the Crankshaft main bearing journal Diameter out of roundness and taper spec for Cummins B-Series and C-Series engines?
What can be done about nicks and burrs on Cummins B-Series engines and C-Series engines?
What is the ID spec for the Crankshaft gear on Cummins B series engines and C series engines?
What is the OD spec for the Crankshaft Gear Journal on Cummins B series engines and C series engines?
Are small impressions or dents OK on the crankshaft of Cummins B series engines and C series engines?
What is the Crankshaft Connecting Rod and Main Journal Specs for Cummins B series engines and C series engines?
How is the Crankshaft Thrust Bearing inspected for Cummins B series engines and C series engines?
How is the spec for the crankshaft thrust bearing surface width for Cummins B series engines and C series engines?
What is the spec for the crankshaft rear oil seal flange OD on Cummins B series engines and C series engines?
What is the spec for the crankshaft rear oil seal flange groove on Cummins B series engines and C series engines?
What is the torque spec for the crankshaft rear cover cap screws for Cummins B series engines and C series engines?
What is the Crankshaft Gear Dowel Hole diameter spec for Cummins B series engines and C series engines?
What is the Connecting Rod Bore ID for B Series engines and Cummins C Series engines?
What is the Connecting Rod nut torque spec for Cummins B Series engines and C Series engines?
How is the connecting rod bushing replaced on a Cummins B Series engines and C Series engines?
What is the connecting rod bushing ID spec on Cummins B Series engines and C Series engines?
What is the flatness spec for the cylinder head on Cummins 4B Series engines?
What is the flatness spec for the cylinder head on Cummins 6B Series engines?
What is the parallelism spec for the cylinder head on Cummins 4B Series engines?
What is the parallelism spec for the cylinder head on Cummins 6B Series engines?
What is the thickness spec for the cylinder head on Cummins 4B Series engines?
What is the thickness spec for the cylinder head on Cummins 6B Series engines?
What is the spec for the cylinder head valve springs on Cummins B Series and C series engines?
What is the tension spec for the cylinder head valve springs on Cummins B Series and C series engines?
How much material can you remove from the exhaust manifold mounting surface on a cylinder head on Cummins B series or c series engines?
How much material can you remove from the exhaust manifold mounting surface on Cummins B series or C series engines?
How does lift measured with the gauge correspond to timing BTDC on inline pumps on Cummins engines?
Is it recommended to swap a Cummins 6BT engine into a Ford truck?
What is the bore and stroke of the Cummins 5.9 6BT 12v engine?
What oil is recommended for the 5.9 6BT 12v engine?
What is the oil capacity of this 5.9 6BT 12v engine?
Is Nitrous Oxide recommended on a Cummins 5.9 6BT engine?
Are there larger injector lines available for a Cummins 5.9 6BT engine?
Are there lighter connecting rods available for a Cummins 5.9 6BT engine?
Are Cummins Crankshafts prone to snapping on Cummins 5.9 6BT engines?
How many RPMs can the stock valve spring handle on a Cummins 5.9 6BT 12v engines?
How important is an air filter on a Cummins 3.9 4BT 8v engines?
What are the installation torque specs for the injector pumps on a Cummins 5.9 6BT engine?
What are some upgrades to these pumps on a Cummins 4BT 8v engine?
What is the torque spec for the camshaft thrust plate on a Cummins 4BT 8v or 6BT 12v engine?
What is the torque spec for the cylinder head bolts on a Cummins 4BT 8v or 6BT 12v engine?
What is the minimum camshaft lobe height on a 94-98 Cummins 6BT engine?
What is the minimum camshaft lobe height on 99 and later Cummins 6BT engines?
What is the spec for the camshaft endplay on 2006 and earlier Cummins 6BT engines?
What is the spec for the camshaft endplay on 2007 and newer Cummins 6BT engines?
What is the camshaft gear backlash spec for 2006 and earlier Cummins 6BT engines?
What is the camshaft gear backlash spec for 2007 and later Cummins 6BT engines?
What is the spec for the thickness of the camshaft thrust plate on newer Cummins 6BT engines?
What is the intake valve clearance spec on intake valves on 1998 and earlier Cummins 6BT engines?
What is the exhaust valve clearance spec on exhaust valves on 1998 and earlier Cummins 6BT engines?
What is the intake valve clearance spec on intake valves on 99 and newer Cummins 6BT engines?
What is the exhaust valve clearance spec on exhaust valves on 99-06 Cummins 6BT engines?
What is the exhaust valve clearance spec on exhaust valves on 07 and newer Cummins 6BT engines?
What is the minimum oil pressure at idle for Cummins 6BT engines?
What is the minimum oil pressure at 2500 RPM on Cummins 6BT engines?
What is the torque spec for camshaft thrust plate bolts for Cummins 6BT engines?
What is the crankshaft damper bolt torque spec for 94-96 Cummins 6BT engines?
What is the crankshaft damper bolt torque spec for 97-02 Cummins 6BT engines?
What is the crankshaft damper bolt torque spec for 03 and newer Cummins 6BT engines?
What is the cylinder head bolt torque spec on 1998 and earlier Cummins 6BT engines.
What is the cylinder head bolt torque spec on 1999 - 2002 Cummins 6BT engines.
What is the cylinder head bolt torque spec on 2003 and newer Cummins 6BT engines.
What is the maximum Gerator-to-Planetary tip clearance on an oil pump for Cummins 6BT 12v and early 24v engines?
What is the maximum Gerator-to-Body clearance on an oil pump for Cummins 6BT 12v and early 24v engines?
What is the maximum Gerator-to-Back plate clearance on an oil pump for Cummins 6BT 12v and early 24v engines?
What is the gear backlash spec on an oil pump for Cummins 2001 and earlier 6BT 12v engines?
What is the gear backlash spec on an oil pump for 2002 Cummins 6BT engines?
What is the gear backlash spec on an oil pump for 2003 and newer Cummins 6BT engines?
What is the camshaft damper bolt torque spec on a 94-96 Cummins 6BT engine?
What is the camshaft damper bolt torque spec on a 97-02 and newer Cummins 6BT engine?
What is the camshaft damper bolt torque spec on a 2003 and newer and newer Cummins 6BT engine?
What is the drivebelt tensioner bolt toque spec for a Cummins 6BT engine?
What is the exhaust manifold bolt spec for a Cummins 6BT engine?
What is the flywheel bolt torque spec for a Cummins 6BT engine?
What is the flywheel bell housing to engine block torque spec on a Cummins 6BT engine?