Skip to main content ↑ ↓
Topic: Part number for Gates hydraulic pump belt tensioner for 1994 U-240 3116 Cat (Read 531 times) previous topic - next topic

Part number for Gates hydraulic pump belt tensioner for 1994 U-240 3116 Cat

The hydraulic pump belt tensioner on my 1994 U-240 with a 3116 Cat is making a lot of noise again.  I've had a "mechanic" replace it when I got caught away from home, and I have no idea whether or not it even has the correct tensioner on it.  Looking at the part number on the existing tensioner wouldn't tell me it is the correct tensioner.  I want to order new tensioners for both the hydraulic pump and the alternator.  Does anybody know which tensioners I should order?

Thanks,
Glen

Re: Part number for Gates hydraulic pump belt tensioner for 1994 U-240 3116 Cat

Reply #1 –
Glen,

Here are the numbers for the 1993 U240 with the same engine, but possibly different pump, as the 1993 has one fan, the 1994 two.

Replace engine belts: 
Goodyear Gaterback. Serpentine: 4070735 7PK1865. 
Hyd: 4060445 6PK1130 replaced 9/09 145k mi.
Water pump belt Cat 7E0744 (½" X 34.5"/13mm X 876 mm).

Replace belt tensioners 5/20/10 149,090 mi. Serpentine Tensioner Caterpillar 7E3999= Gates 38509. Hydraulic Tensioner Cummins 3937553= Gates 38504.

Gates belts: water pump 9345HD, serpentine K070735HD, hydraulic:  K060445.  Belt idler bearings (2 each) for Cat 7E3999: NTN 6203LU.  Fed Mogul BCA203-FF. 5/1/11 154,661 miles, replace water pump idler bearings (2- 202FF).

Re: Part number for Gates hydraulic pump belt tensioner for 1994 U-240 3116 Cat

Reply #2 –
Brett, thanks a bunch.  I appreciate the help.

Glen

Re: Part number for Gates hydraulic pump belt tensioner for 1994 U-240 3116 Cat

Reply #3 –
I replaced both tensioners a couple of weeks ago. On our '96 they were both the Gates 38504. One worked great the other threw a couple of new belts and started squeeking so I put the old tensioner on and am returning the bad one to Amazon. Probably the one-in-a-million that was bad but I spent $320.15 for the mechanic dujure to decide that he didn't know what the problem was and installed the second belt. It lasted 51 miles. My diagnosis was that the only thing that changed was the tensioner soo...