Backhoe Loader Engine Rebuild Cost: Case 580, John Deere 310, Cat 420, and More

How much does a backhoe loader engine rebuild cost? Real cost ranges for Case 580, John Deere 310, Cat 420, and Kubota backhoes, plus a repair-vs-replace guide.

A backhoe loader engine rebuild is one of the most expensive single repairs on this class of machine. The cost range is wide because it depends on engine brand, how far the engine ran before it was shut down, and whether the block is salvageable. Here is what to expect before you hand the machine over.

Backhoe Engine Rebuild Cost Overview

Repair scope	Cost range
Top-end overhaul (head, rings, valve train)	$4,500-$9,500
In-frame rebuild (pistons, rings, bearings)	$7,000-$14,000
Full rebuild (crank, cam, block work)	$10,000-$22,000
Reman long block swap	$13,000-$28,000
OEM new engine	$18,000-$38,000+

Most backhoe rebuilds fall in the $7,000-$14,000 range for an in-frame on a machine that was caught before catastrophic failure. If the engine overheated and ran until it stalled, budget for the reman swap range.

Case 580 Engine Rebuild Cost

The Case 580 (580M, 580N, 580 Super N) is the most common backhoe in North America. Most run a 4.5L or 6.7L CNH Industrial engine depending on configuration. Rebuild costs:

Model	Engine	Top-end rebuild	Reman long block
580M / 580N	4.5L CNH F4HFE	$5,000-$9,000	$13,500-$21,000
580 Super N	6.7L CNH F5HFL	$6,500-$11,000	$16,000-$27,000
580ST / 590ST	6.7L Tier 4 Final	$7,000-$12,000	$18,000-$30,000

Case 580 engines are well-supported by reman suppliers. Parts availability is good through Case dealers and independents. Labor on a Case 580 engine swap runs 18-28 hours at $100-$145/hour in most markets.

For model-specific cost pages: Case 580N engine rebuild cost.

John Deere 310 Engine Rebuild Cost

The John Deere 310 series (310G, 310L, 310SL) runs John Deere PowerTech 4045 and 4.5L engines. These are common engines with good parts availability.

Model	Engine	Top-end rebuild	Reman long block
310G / 310L	4045 PowerTech 4.5L	$5,500-$9,500	$14,000-$22,000
310SL HL	PowerTech Plus 4.5L T4	$6,500-$11,000	$16,500-$26,000

John Deere dealer rebuild costs run on the high side compared to independents. For a 310G with a moderately tired engine, an independent shop using a quality reman block is usually the most cost-effective path. For model-specific estimates: John Deere 310L engine rebuild cost.

Cat 420 Engine Rebuild Cost

The Cat 420 series runs a Cat C3.4B or C4.4 engine depending on year. Cat engines are well-supported for rebuild, and Cat dealers can source reman short blocks.

Model	Engine	Top-end rebuild	Reman long block
420F / 420F2	Cat C3.4B 2.9L T4F	$6,000-$10,500	$15,000-$24,000
420GC / 420	Cat C4.4 4.4L T4F	$7,500-$13,000	$19,000-$32,000

Cat dealer labor rates are typically the highest in the market. If budget matters, get an independent quote alongside the dealer number. For model-specific pages: Cat 420F2 engine rebuild cost.

Does the Engine Rebuild Make Financial Sense?

The standard rule: if the repair costs more than 30 percent of the machine's current market value, look hard at the numbers before approving it.

A $12,000 rebuild on a Case 580N worth $38,000 is reasonable math. The same rebuild on a 580N worth $18,000 with 9,500 hours is a tighter call. You are paying 67 percent of the machine's value to get it running again, and there will be other tired components.

Before you authorize anything major, know what the machine is worth. Run a free valuation at EquipBook. Case 580, John Deere 310, and Cat 420 values in under 60 seconds.

Sanity-Check Your Shop Quote

EquipBook's free repair cost estimator covers backhoe engine rebuilds. Describe what your machine needs and get a labor-plus-parts range before you hand it over or sign an estimate.