How Much Does a 24 Valve Cummins Weigh?

If you’re looking at swapping, rebuilding, or just geeking out about diesel engines, chances are you’ve heard the name “24 Valve Cummins.” But not all 24-valve Cummins engines are the same — and yes, their weights vary slightly depending on the model.

Which Engine Models Are in the 24 Valve Cummins Series?

When people say “24 Valve Cummins”, they’re usually talking about the B-Series Cummins 5.9L and 6.7L inline-six diesel engines that have a 24-valve cylinder head (instead of the older 12-valve design).

Mesin-mesin ini diluncurkan dalam keluarga B-Series dan telah menerima beberapa pembaruan sejak 1998. Berikut adalah timeline sederhana untuk diikuti:

Years	Series	Engine Model(s)	Displacement	Fuel System	Typical Power	Common Vehicles
1998.5–2002	5.9L 24V ISB	ISB 5.9 CM550 CM551	5.9L	VP44 electronic pump	215–245 hp	Dodge Ram 2500 / 3500
2003–2007	5.9L 24V Common Rail ISB	ISB 5.9 CM845 CM848	5.9L	CP3 common rail	305–325 hp	Dodge Ram 2500 / 3500
2007.5–Present	6.7L 24V Common Rail ISB	ISB 6.7 CM2100 CM2200 CM2350	6.7L	CP3 or CP4 common rail	350+ hp	Ram HD trucks & medium-duty trucks

How Much Does a 24 Valve Cummins Weigh?

A 24 Valve Cummins usually tips the scales at 1,100 to 1,200 lbs dry. The newer 6.7L versions are a little heavier than the older 5.9L models — mainly because of a longer stroke, extra emissions equipment, and stronger internal parts.

Dry weight means the engine alone, without any fluids or accessories. Once you add oil, coolant, turbo piping, and other bolt-ons, you can expect an extra 100–150 lbs.

Here’s a quick weight chart:

Series	Engine Model(s)	Dry Weight (approx.)
5.9L 24V ISB (1998.5–2002)	CM550 / CM551	~1,100–1,150 lbs (500–520 kg)
5.9L 24V Common Rail ISB (2003–2007)	CM845 / CM848	~1,100–1,150 lbs (500–520 kg)
6.7L 24V Common Rail ISB (2007.5–Present)	CM2100 / CM2200 / CM2350	~1,150–1,200 lbs (520–545 kg)

MORE: How Much Does a 12 Valve Cummins Weigh?

How to Choose the Right 24 Valve Cummins by Weight

iner mungkin menerima peningkatan berat yang marginal untuk dividen performa yang sesuai.

Match the Weight to Your Truck’s Front End

• Your engine puts a load on the front suspension, and it also affects the steering and brakes.
• If your truck utilized a smaller engine, making the switch to a 6.7 L, which weighs 1,200 lbs, will likely require suspension work.

Keeping modifications within the original specifications maintains the weight range, which often simplifies and reduces costs for modifications.

Factor in the “Loaded” Weight

While a dry weight chart is useful, assuming a turbo weight of 50 lbs or an alternator with coolant and oil will add 50-100 lbs puts your engine weight estimation 100-150 lbs over. This has implications on how you plan your hoist, mounts, and frame setup.

Consider Performance vs. Weight Trade-Offs

• 5.9L 24V – Slightly more appealing for older trucks with a simpler emissions system, and is significantly lighter.
• 6.7L 24V – Newer tech, increased torque potential, all at a heavier weight.

Think About Long-Term Maintenance

Keep in mind, over the long term, weight will equal wear on your suspension and front-end parts. This will exacerbate the wear if the vehicle is mostly driven off-road. The chassis should account for the weight if the vehicle is assumed to be in constant use, and especially under load.

Quick Takeaway

In terms of weight concerns, the 5.9L truly shines, whereas for increased power and ease of driving, the 6.7L will always be a tradeoff that people would appreciate.