How much is a Honda Civic 2004 engine

In today’s market, a 2004 Honda Civic engine typically costs about $500–$1,200 for a used 1.7L D17 long block, $1,200–$2,500 for a used 2.0L K20A3 (Si), and $1,800–$3,200 for a remanufactured D17 (or $2,800–$4,200 for a reman K20A3), before shipping, core charges, and installation; professional installation usually adds $1,000–$2,500, putting most all-in swaps in the $2,000–$5,500+ range. Prices vary widely by engine variant, mileage, warranty, and regional availability.

What’s behind the price differences

The 2004 Civic came with several engines—most commonly the 1.7L D17 series (DX/LX/EX/HX), the 2.0L K20A3 in the Si hatchback, and the 1.3L LDA in the Hybrid. The type and condition of the engine, plus what’s included (long block vs. complete drop-in), strongly influence cost. The following points explain the main drivers of pricing.

• Engine variant: D17 1.7L (most common, least expensive), K20A3 2.0L (rarer, pricier), LDA 1.3L Hybrid (niche, supply-dependent).
• Condition: Used/salvage vs. rebuilt vs. remanufactured; reman units command higher prices for the warranty and machine work.
• Mileage and documentation: Lower miles with verifiable history cost more; compression/leak-down numbers add confidence.
• Completeness: Long block only vs. complete engine with intake, exhaust manifold, injectors, sensors, accessories, and harness.
• Warranty: 30–90 days (typical salvage) up to 1–3 years (reman); longer warranties increase price.
• Source and logistics: Local salvage vs. shipped; freight can add $150–$350+; core charges for reman units can be $200–$600.
• Regional demand: Prices fluctuate by region and season; rust-belt vs. sun-belt availability can differ.

When comparing quotes, ensure you’re matching like for like—an inexpensive long block without accessories or warranty is not equivalent to a complete, warrantied drop-in.

Typical price ranges by 2004 Civic engine

Below are market-typical U.S. price ranges as of 2025 for the main 2004 Civic engines. Actual quotes may vary based on mileage, completeness, and warranty terms.

• D17A1/D17A2/D17A6 1.7L (DX/LX/EX/HX):
  

  • Used long block: $500–$1,200
  • Used complete engine (with accessories): $800–$1,500
  • Remanufactured long block: $1,800–$3,200 (+core)
  • JDM-import D17 variants: $700–$1,200 (often lower miles, may require sensor/manifold swaps)

• K20A3 2.0L (Civic Si hatchback):
  

  • Used long block: $1,200–$2,500
  • Remanufactured: $2,800–$4,200 (+core)

• LDA 1.3L (Civic Hybrid):
  

  • Used engine (ICE only): $900–$2,000
  • Pricing depends on whether the Integrated Motor Assist (IMA) components are included; battery and hybrid system condition heavily affect total repair cost.

The D17 is generally the most affordable and easiest to source. The K20A3 commands a premium due to demand and performance interest. Hybrid powertrains are more situational and may require specialized labor.

Where to buy and what to expect

Shopping across multiple channels helps you compare condition, warranty, and freight. Expect to provide your VIN and engine code for accurate matching and quotes.

• Auto recyclers/salvage yards (local and national chains): Inventory often lists mileage and compression; warranties typically 30–90 days.
• Online aggregators/marketplaces: Car-Part-type networks, eBay Motors, and regional classifieds can surface competitive deals; vet seller ratings and return policies.
• Remanufacturers/engine builders: Offer longer warranties and documented machine work; higher upfront cost and core return logistics.
• JDM importers: Low-mile engines from Japanese-market vehicles; may need to swap sensors, manifolds, or mounts to match U.S. spec.

Regardless of source, ask for compression/leak-down results, warranty terms in writing, and clear photos showing the block, head, and any included accessories.

Installation costs and “while-you’re-there” parts

Installation cost depends on shop rate, transmission type, and whether ancillary parts are replaced during the swap. Planning for preventative maintenance while the engine is out can save future labor.

• Labor: 8–14 hours typical; at $90–$180/hr, expect $800–$2,500 for labor depending on engine and shop.
• Gaskets, fluids, mounts, and hardware: $150–$450.
• D17 timing belt service (belt, water pump, tensioner): $250–$500 in parts; smart to replace with the engine out.
• K20A3 uses a timing chain, but consider chain/tensioner inspection, valve cover gasket, and front/rear main seals.
• Clutch (manual) or torque converter seal (auto): worthwhile if wear is evident; clutch kit $200–$450 parts.

Most owners see total installed costs land between $2,000 and $5,500+, with D17 swaps on the lower end and K20A3 or Hybrid-related work trending higher.

Compatibility and identification tips

Correct fitment avoids headaches with mounts, sensors, emissions, and engine management. Matching the right engine code and emissions package is essential, especially in CARB states.

• Confirm engine code: D17A1/D17A2/D17A6 (1.7L), K20A3 (Si), LDA (Hybrid) via block stamp and VIN.
• Match transmission type and year harness: AT vs. MT sensors and ECU calibration can differ.
• Emissions equipment: Federal vs. California (CARB) setups may vary in EGR and catalyst configuration.
• JDM swaps: Plan to reuse your original intake/exhaust manifolds and sensors to ensure plug-and-play with your ECU.

Providing your VIN to the seller and installer helps verify an exact match for mounts, sensors, and emissions compliance.

Buyer safeguards and red flags

A few checks up front can prevent a costly do-over. Insist on basic test data and clear warranty terms.

• Ask for compression/leak-down numbers and oil condition photos; avoid engines with low or uneven readings.
• Inspect for broken tabs, cracked housings, and stripped threads; damage often signals rough handling.
• Read the warranty fine print: duration, labor coverage (usually excluded), return shipping, and restocking fees.
• Be cautious with “ran when pulled” with no proof; prefer documented mileage and donor VIN.

A transparent seller with testing data and a reasonable warranty is usually worth a modest premium over the cheapest listing.

Bottom line

For most shoppers, a solid used D17 long block runs about $500–$1,200; a used K20A3 for the Si is $1,200–$2,500; remanufactured options add peace of mind at roughly $1,800–$4,200 depending on the engine. With installation and essentials, budget $2,000–$5,500+ for a complete swap.

Summary

A 2004 Honda Civic engine’s price hinges on the variant (D17, K20A3, or Hybrid), condition, completeness, and warranty. Expect $500–$1,200 for a used 1.7L, $1,200–$2,500 for a used 2.0L Si engine, and $1,800–$4,200 for reman units, plus shipping, core charges, and $1,000–$2,500 for installation. Verify compatibility by engine code and emissions spec, prioritize documented testing and clear warranties, and consider preventative maintenance while the engine is out to maximize long-term value.

How long can a 2004 Civic last?

With proper maintenance, a Honda Civic can last between 200,000 and 300,000 miles. Many owners have reported reaching well beyond that range. The key to long life? Routine maintenance, timely repairs, and a bit of care in your driving habits.

How much is it to replace an engine in a Honda Civic?

That means the cost of replacing an engine can range anywhere from $1,800 on an economy vehicle (like a Honda Civic with a salvage engine) all the way to an eye-watering $16,000+ for a vehicle with a handmade engine (like a Mercedes-Benz S63 AMG).

What engine does a 2004 Honda Civic have?

Honda’s high-output i-VTEC (“i” for intelligent) 2.0-liter dual-overhead-cam four-cylinder engine produces 160 hp and 130 pounds-feet of torque; it drives a close-ratio five-speed-manual gearbox.

How much is a used 2004 Honda Civic worth?

2004 Honda Civic Pricing

	Original MSRP	KBB Fair Purchase Price (national avg.)
DX Sedan 4D	$13,500	$3,141
Value Coupe 2D	$13,900	$2,890
HX Coupe 2D	$14,200	$3,205
Value Sedan 4D	$14,900	$4,031