1987 Western Star 4900 Fuel System Parts
Select Your Submodel
- Industrial Injection®4000 Governor Spring KitWestern Star 4900 14.0L 1987, 4000 Governor Spring Kit by Industrial Injection®. 12 Valve. The Industrial Injection 4000 Governor Spring Kit is by far the best modification you will ever do to your 12 valve Cummins. The factory governor...Increased PerformanceBetter Throttle Response$158.44