we carry lower gasket sets for cummins 3.9 and 5.9 liter engines. for your convenience, you can access our inventory through the product links listed below. if you do not see the b series part you need, please use our quote request form or call us at 855.470.3525 our friendly sales staff will gladly help you.
this upper gasket kit should fit any 3.9l 4bt cummins equipped with the rotary injection pump. please enter your esn above so we can ensure proper fitment before shipping. cummins part number 4089648
engine overhaul kits these kits include pistons, upper and lower gaskets, connecting rod shell sets and other parts you need to revamp your engine. we have many other cummins 4bt parts available, as well, including sea water pumps, fuel filters, exhaust, crankshaft, injectors and more.
aftermarket upper and lower gasket sets to fit fits cummins 4b, 4bt, 4bta, 3.9l 4 cylinder diesel 3802375 3802019 3802266 3802015, 3802016, 3802216, 3802240, 3802361, 3804896 38020
diesel engine rebuild kit 4bt cylinder gasket set 4089648 3802375 , find complete details about diesel engine rebuild kit 4bt cylinder gasket set 4089648 3802375,engine rebuild kit,4089648,3802375 from machinery engine parts supplier or
our master engine builders all have 30 years of building and working on diesel engines and have built engines for both the a and cummins dealers. big or small we worked on them all today we specialize in three medium duty engine models cummins 4bt, cummins 6bt and a 3306.
significant drops in fuel pressure from malfunctioning lift pumps can create problems in the cummins 3.9 and 5.9l engines. failure to replace the lift pump prevents cummins 4bt and 6bt fuel injection pumps from functioning efficiently. before major repairs are needed, upgrade with a 3.9 or 5.9 cummins lift pump from diesel parts direct.
one diesel engine in particular that pops up more than most is the 3.9l cummins. the 3.9l (4bt) cummins inline four diesel engine creates 105hp and 265 lb ft of torque from its relatively small size of 30.6 in long, 24.6 in wide and 37.7 in high. this is what makes it such a popular candidate for engine
aug 04, 2017 common 4bt / 6bt issues. the cummins 4bt and 6bt engines are widely known to be bulletproof. if there is an engine out there that old school guys always go to is the older mechanical 4bt cummins.the reason these engines are still used in industrial and jeep swap applications is due to
the common 6bt fuel modifications apply to the 4bt, as they share the same fuel pump and injectors. if you want big horsepower, a turbocharger upgrade is a great place to start. an hx35, he341, or he351 are great budget options which will flow significantly more air than the stock 4bt turbocharger at the cost of throttle response.