Frequent question: How do I tell 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.

What year Cummins had the 53 block?

Between 1999 and 2001, the Cummins 24v engine blocks with casting # 53 were manufactured by Brazilian company, TUPY. The # 53 block casting has thin water jacket walls that are susceptible to cracking.

Where is the block number on a Cummins?

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.

What does a 53 block look like?

The 53 block can be identified by looking under the left front wheel ,look up under the injection pump there is a large 53 stamped in te block.

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Do 2002 Cummins have 53 blocks?

So if the truck is in fact a 2002 and has a “53” block, it’s either extremely rare, the engine was replaced or it’s not a 2002.

Why do Cummins 53 blocks crack?

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.

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.

Do all Cummins 53 blocks crack?

53 Block Casting Identification & Information

The # 53 block casting has inherently thin water jacket walls that are susceptible to cracking. … 53 block castings have been identified on 12 valve Cummins engine blocks as well, though there no evidence that these blocks develop cracks like the later 24v engine blocks do.

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.

What year Dodge diesel is the best?

  • 1989-1993 Dodge Ram 2500 and 3500 – Timeless Diesel.
  • 2003-2008 Dodge Ram 2500 and 3500 Heavy Duty – Best Used Diesel Value.
  • 2010-2013 Ram 2500 Heavy Duty – Most Capable Diesel.
  • 2020 Ram 3500 Heavy Duty – First 1,000 lb-ft Diesel.
  • 1999-2003 Super Duty – Best Budget Diesel.
  • 2008-2010 Super Duty – Best Diesel to Modify.
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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.

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.

How many miles will a 24 valve Cummins last?

Dodge states that the Cummins is good for 350,000 miles before major overhaul. Chevy and Ford say 250,000 miles for their diesels.

How much boost should a stock 24v Cummins make?

Stock 04.5-07 trucks typically spike up to 32psi of boost pressure. With the Boost Fooler you will see up to 40psi of boost on a stock truck and up to 48psi of boost on heavily fueled trucks.

What year Cummins has the killer dowel pin?

Some complications are serious, but others aren’t near as urgent. As diesel enthusiasts, you all have heard of the Killer Dowel Pin, often referred to as the KDP. The “Killer Dowel Pin” is a concern on 1989 to 1998.5 12-valve Cummins engines. This is a steel pin that’s pressed into the cast iron block.

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