Quick Answer: What block is in a 2002 Dodge Cummins?

The second potentially deadly flaw occurs in ’99 to ’02 5.9L Cummins 24-valve engines. It’s known as the 53 block problem, because these engine blocks have the number 53 cast into the side of the crankcase.

Do 2002 Cummins have 53 blocks?

The Cummins “53” Block was used in Cummins 24 valve ISB diesel engines from 1998.5-2002. … The “53” block casting has thin water jacket walls that are susceptible to cracking. With coolant cavitation, corrosion, coolant pressure in the block, frequent or heavy towing they may crack, causing a loss of coolant.

How do I know if my Cummins is a 53 block?

53 blocks can be identified by a “53” casting number located on the side of the engine block. The casting number is commonly seen on the passenger side, below the injection pump, although some #53 blocks have the casting number located on the driver side.

How do you tell what Cummins block you have?

The cast number for the Cummins 5.9 engine block will be located just below the wiring harness and above the spot where the oil pan meets the block. Engine blocks cast by Tupy feature a two-digit number embossed on the block surface. Blocks cast by Teksid include a longer series of numbers in a smaller size.

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What year Cummins has the 55 block?

Engine/Transmission (1998.5 – 2002) – “55” Block | Turbo Diesel Register.

What’s wrong with a 53 block Cummins?

Fatal Flaw 2: The Weak 53 Block

It’s known as the 53 block problem, because these engine blocks have the number 53 cast into the side of the crankcase. After years of use, the 53 blocks tend to crack until coolant starts to pour out the side of the block. This is an issue that many people kid themselves about.

What Cummins block is bad?

The 53 block was a bad block casting from cummins that are known to crack. The number 53 is cast into the block somewhere behind the driver’s wheel well. It was only some of the 24 valve motors.

How many miles can a Cummins last?

The longevity of a cummins depends on preventive maintenance. The more you take care of it the longer it will last. They hold power well and if monitored properly will last longer than you will. Average mileage is between 17-22 depending on configuration and how you drive.

Are all 5.9 Cummins blocks the same?

From ’94-’97, all 5.9L Cummins engines shared the same cast-iron block, crankshaft, main cap bolts and cylinder head found on the ’89-’93 mills. … 14mm bolts on ’89-’97 engines), all late model 12-valves were equipped with the smaller diameter fasteners.

Is a 12 or 24 valve Cummins better?

While the 12-valve is a little bit more reliably with the mechanical P7100 pump, tuning it requires modified parts of the injection pump. The 24-valve might not be as insanely reliable, but it’s still very reliable and can easily be tuned with a handheld tuner.

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What is the strongest Cummins Engine?

With an output of 4000 hp and more, Cummins’ new QSK95 is the world’s most powerful high-speed diesel engine. The 95-litre 16-cylinder QSK95 is the first engine to be introduced in a new high-horsepower diesel and gas platform from Cummins.

What is the best Cummins motor?

Cummins 5.0L V8 TURBO

The Cummins 5.0L V8 TurboDiesel is the best Cummins engine for smaller trucks and drivers who don’t need as much pulling power. It utilizes a compacted graphite iron block for a durable construction that is still light enough for smaller applications.

What is so great about the 12 valve Cummins?

A stroke of 4.72 inches (accompanied by a 4.02-inch bore) yields 359 cubic inches, incredible low-rpm torque and remarkable fuel efficiency. Along with it being in an inline engine’s nature to produce gobs of torque, they’re also easier to work on than the V8 competition.

Are all 53 blocks bad?

Not all 53 blocks were defective, more than one foundry cast the 53 blocks but the bad ones came from one foundry which missed the reinforcing rib that was to go in the coolant gallery in that area. My 99 2500 2WD has a 53 block.

How do you fix a 53 block?

there is no permanent fix for a cracked 53, 55, or storm block. the only real fix that will last is to replace the block, and change your driving habits. firing up an ice cold engine and taking off like a bat out of hell WILL crack the block. you have to let these things warm up before working them hard.

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