idbankrman
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- Location
- Castle Rock CO USA
The part number for the lift pump I bought from Highway and Heavy parts is 4988749. It looks like the one you see on most trucks with the fuel line connection on top and the hand primer on the bottom. It is not the original that the trucks came with but an improved replacement. You won't have to make any modifications to use it. The military uses this one as an exact replacement just as often as the original style pump. Oh the pump was actually $43 + 13 shipping
Thanks for all the input on the priming issue. I pulled the rubber line from the canister filter to the lift pump and it looked very shabby with lots of cracks. So I changed it and immediately the truck was much easier to re-prime and start. I'm going to give it 48 hours and then see what happens. I had NAPA make a replacement using hydraulic hose. If this isn't the final answer then Im going to pull the tank selector valve (this is M929A2 dump truck) and rebuild it and replace the small rubber hoses. I would go right for an inspection of the T fittings at the fuel tanks but on these dump trucks the fuel tanks are covered by a metal plate and the spare carrier so it's a big job doing any fuel tank work.
Thanks for all the input on the priming issue. I pulled the rubber line from the canister filter to the lift pump and it looked very shabby with lots of cracks. So I changed it and immediately the truck was much easier to re-prime and start. I'm going to give it 48 hours and then see what happens. I had NAPA make a replacement using hydraulic hose. If this isn't the final answer then Im going to pull the tank selector valve (this is M929A2 dump truck) and rebuild it and replace the small rubber hoses. I would go right for an inspection of the T fittings at the fuel tanks but on these dump trucks the fuel tanks are covered by a metal plate and the spare carrier so it's a big job doing any fuel tank work.