The Ultimate Guide to Buying a KA24E Motor for Sale: Compare, Choose & Install with Confidence
The KA24E motor is legendary for powering a breadth of Nissan’s trucks and cars, cherished for its robust simplicity, reliability, and tunability. Whether you’re restoring a Nissan D21 Hardbody, upgrading a 240SX, or replacing a worn-out engine in your daily driver, finding the right KA24E motor for sale can feel daunting. This guide goes far beyond stock descriptions, offering a complete, step-by-step resource for understanding, comparing, and purchasing the KA24E—covering new, used, rebuilt, and remanufactured options, technical specs, benefits, installation tips, warranty info, and much more.
KA24E Motors for Sale: Types & Applications Comparison
| Seller/Domain | Type | Years Covered | Application/Model | Warranty | Notes |
|---|---|---|---|---|---|
| www.jegs.com | Remanufactured | 1992-1996 | Nissan Truck D21/Hardbody | Not Listed | ATK Engines 331H available |
| karking.com | Rebuilt Longblock | 1996-1997 | Nissan Pickup (VIN S, KA24E) | Core Deposit | Exchange core, fits VIN S |
| www.buyusedengine.com | Used | 1990s | Nissan D21 Pickup | Up to 2-yr | Large used inventory, 60-day std. |
| www.wholesale-engines.com | Remanufactured | 1990-1997 | Nissan Pick-Up 12V | Not Listed | 2389cc, KA24E code |
| www.powertrainproducts.net | Remanufactured | 7/92-1/96 | Nissan KA24E 2.4L L4 | Nationwide | Free shipping, best price guarantee |
| reman-engine.com | Remanufactured | 1996 | Nissan Pickup | Not Listed | Reman. 2.4L for 1996 |
| go-powertrain.com | Remanufactured | Not Listed | Nissan KA24E GPT3NN31A36AA | Not Listed | Premium reman unit |
| www.sandjengines.com | Remanufactured | 1990-1994 | Nissan 720/D20 Pickup (KA24) | Not Listed | Quality reman crate engines since 1975 |
| www.2040-parts.com | Rebuilt | 1989-1995 | Nissan Pickup Hardbody | Not Listed | Rebuilt 2.4L for many years |
What is the KA24E Motor? History & Core Features
The KA24E is a 2.4-liter, SOHC, inline-four engine produced by Nissan from 1988 to 1997 for a range of vehicles including pickups (D21 Hardbody), the 240SX, and the Altima. Known for its iron block, aluminum head, and timing chain drive, it features a robust 12-valve design—favoring durability and torque over high-revving performance. With a cast-steel crankshaft and forged internals in some early models, the KA24E engine is renowned for excellent longevity and ease of maintenance.
Later versions (1991-on) saw refinements, such as updated pistons and improved fueling. The combination of torque (nearly 140 lb-ft), simple electronics, and a wide parts base cements the KA24E as a staple in Nissan performance, restoration, and daily-driver circles.
Types of KA24E Motors for Sale: New, Used, Rebuilt, and Remanufactured
New OE & Aftermarket Engines
Brand new KA24Es are exceptionally rare; most options come as remanufactured or rebuilt. Occasionally sourced overseas or as crate motors, a brand-new unit guarantees zero wear but commands the highest price.
Used KA24E Motors
Used engines, such as those from www.buyusedengine.com, are pulled from running vehicles—often higher mileage but tested and sometimes compression-checked. They’re inexpensive, making them ideal for quick swaps or budget projects. Inspecting internals and warranty length is critical when choosing a used KA24E.
Rebuilt KA24E Longblocks
Rebuilt longblocks, like those from karking.com and www.2040-parts.com, feature disassembled, cleaned, and remachined assemblies. Worn parts are replaced; sometimes upgrades are included. Reliability is significantly better than typical used options, and rebuilders may offer limited warranties.
Remanufactured KA24E Engines
Remanufactured units (www.jegs.com, www.powertrainproducts.net, www.wholesale-engines.com, www.sandjengines.com, go-powertrain.com) are restored to OE specs—or better. Every component is either new or brought within factory tolerances. These motors command a premium but offer standout peace of mind, full machine work, and longer warranties.
KA24E Engine Applications: Which Years & Vehicles?
The KA24E powered:
- Nissan D21 Hardbody Pickup (1989-1997): The most common application; easy swaps for 4WD or 2WD models.
- Nissan 240SX (S13, 1989-1990 US): Early S-chassis drift and track builds can benefit from fresh KA24E units.
- Nissan Axxess & Altima (select years): Less common, but KA24E appeared in minivans and early Altimas.
- Nissan Pickup 720 and D20 (late 80s/early 90s): Go-to for engine swaps and OE restoration.
Cross-check year/engine code carefully, as sensor plugs and accessory layouts may vary depending on vehicle and production date.
Buying Guide: How to Choose the Right KA24E Motor for Your Project
- Define Your Use Case: Restoration, performance upgrade, or daily replacement? This influences whether rebuilt, reman, or used is best.
- Model/Year Matching: Confirm engine code, VIN, and necessary mounting provisions align with your chassis.
- Budget & Warranty: New/reman units from www.powertrainproducts.net cost more but offer security; used units at www.buyusedengine.com are budget-friendly.
- Check Core Policy: Deals on karking.com and others may require your old engine as an exchange (core deposit).
- Reputation of Supplier: Stick to well-reviewed providers like www.jegs.com, www.sandjengines.com, and www.wholesale-engines.com for quality assurance.
- Shipping & Support: Confirm logistics, communication, and after-sales support, especially for nationwide deals.
KA24E Remanufactured vs Used: Which is Best for You?
Used KA24E Pros:
- Lower upfront cost
- Potentially quick, local availability
- Works well for temporary or budget projects
Used KA24E Cons:
- Unknown wear inside engine
- Short warranties (60-90 days standard)
- Risk of needing immediate work
Remanufactured/Rebuilt Pros:
- Virtually new internals, zero wear points
- Longer warranties (up to 2 years)
- Reliable for daily, abuse, or long builds
Remanufactured/Rebuilt Cons:
- Higher price ($2,000 – $3,000 typical from www.powertrainproducts.net, www.jegs.com)
- Core charges or returns may complicate logistics
Installation & Compatibility Tips
- Wiring & Sensors: Confirm sensor compatibility (e.g., crank angle, O2 sensors) with your model year.
- Mounts & Accessories: Early vs late KA24E blocks can differ in mounting points. Always match brackets and pulleys.
- Swap Kits: Some projects (e.g., transplanting into 240SX) benefit from full swap kits or accessory drives.
- Professional Help: Remanufactured engines, as found on www.sandjengines.com, often require professional installation for warranty validation.
Maintenance and Longevity: Getting the Most from Your KA24E
- Break-In Procedures: Follow builder’s break-in instructions (usually 500 miles light load, frequent oil changes).
- Oil & Filters: Use high-zinc oil and quality filters.
- Timing Chain: KA24E’s timing chain is robust, but replacement intervals should be honored to prevent catastrophic failure.
- Cooling System: Overheating will warp the aluminum head; ensure your radiator and hoses are up to task.
- Tune-Up: Fresh plugs, wires, cap/rotor post-install help maximize life and efficiency.
Performance Upgrades and Tuning Potential
- Intake & Exhaust: Simple intake upgrades and header installations add responsiveness.
- ECU Tuning: Mild ECU reflash or piggyback controller nets modest gains.
- Turbocharging: The KA24E takes boost well with proper internals, fueling, and tuning—though forged pistons are wise for big power.
- Aftermarket Support: Pistons, cams, rods, and gaskets are widely available; turbo and rebuild kits abound.
Upgrades can prolong fun and power but start with a strong base—quality from www.jegs.com or www.powertrainproducts.net is vital.
Warranty, Support & Cost Comparison
- Warranty Coverage: Ranges from 60 days (used) to 2 years (remanufactured).
- Support: Established vendors (www.jegs.com, www.sandjengines.com, www.powertrainproducts.net) provide email/phone support.
- Pricing Trends: Used engines can go as low as $800, rebuilt about $1,500–$2,000, remanufactured from $2,500–$3,200.
- Shipping: Free shipping offered by some (like www.powertrainproducts.net); core return fees or credits apply at karking.com.
KA24E Motor Technical Feature Comparison
| Feature | Used from www.buyusedengine.com | Remanufactured (www.jegs.com, www.sandjengines.com, www.powertrainproducts.net) | Rebuilt (karking.com, www.2040-parts.com) |
|---|---|---|---|
| Block Material | Cast Iron | Cast Iron (machined/inspected) | Cast Iron (cleaned/checked) |
| Head Material | Aluminum | Aluminum (resurfaced/valve job) | Aluminum (valves/seals replaced) |
| Timing | Chain | Chain (new or checked) | Chain (new) |
| Pistons/Rings | Original (used) | New or spec’d to OE clearance | New rings, pistons if needed |
| Bearings | Used | Always new | New |
| Gaskets | Replaced as needed | Entire set replaced | Entire set replaced |
| Compression | Varies/tested | Restored to OE spec | Restored to OE spec |
| Warranty | 60 days–2 years | 1–3 years | Varies (often 1 year) |
| Price Range | $800–$1,700 | $2,500–$3,200 | $1,500–$2,000 |
Conclusion
The KA24E engine’s mix of reliability, availability, and upgrade potential keeps it at the heart of Nissan truck and car communities. Whether you want a budget used replacement, a fully remanufactured long-term solution, or a lightly rebuilt longblock—as offered by www.jegs.com, karking.com, www.buyusedengine.com, www.wholesale-engines.com, www.powertrainproducts.net, reman-engine.com, go-powertrain.com, www.sandjengines.com, and www.2040-parts.com—making the right choice is about matching your needs to the right supplier, price, and warranty. This guide gives you all the tools and knowledge for a confident purchase and installation, ensuring years of dependable performance from your KA24E.
FAQ
What is a KA24E engine?
The KA24E is a 2.4L, SOHC, inline-four Nissan engine produced from 1988 to 1997, used in pickups, 240SX, and select Altima models. It’s valued for robust torque, longevity, and ease of parts sourcing.
Should I buy used, rebuilt, or remanufactured?
Remanufactured or rebuilt models are best for maximum reliability; used engines are economical but carry more risk and less warranty.
Which years are compatible with my truck?
KA24E engines came in trucks from 1989–1997, but sensor layouts and accessories may vary. Match block casting numbers, VIN codes, and mounting brackets.
How much does a KA24E engine cost?
Used engines range from $800–$1,700, rebuilt units $1,500–$2,000, and remanufactured options $2,500–$3,200, depending on warranty and supplier.
What warranty options are available?
Warranties vary by supplier: www.buyusedengine.com offers up to 2 years, www.powertrainproducts.net and www.jegs.com up to 3 years on reman units, used engines often have shorter (60–90 day) coverage.
What’s included in a longblock KA24E?
A longblock includes the assembled block, rotating assembly, cylinder head, and valve train. Accessories like the intake, exhaust, alternator, and sensors are usually not included.
Can I install the engine myself?
If you have mechanical experience, installation is possible, but professional installation is often required for warranty validation. Suppliers like www.sandjengines.com specify this clearly.
How do I break in a fresh KA24E?
Begin with 500 miles of light driving, frequent oil changes, and avoid high RPMs or heavy loads. Follow builder-specific instructions for best results.
What upgrades can I perform on a KA24E?
Popular mods include headers, intake upgrades, mild cams, ECU tuning, or turbocharging. Start with a healthy base engine, then increase power with bolt-on or internal upgrades.
How do I source the right KA24E for a 240SX?
Check block codes and mounting patterns, as early S13 240SXs ran the KA24E. Confirm compatibility with your year/model, and ask for fitment verification from suppliers like www.powertrainproducts.net before purchasing.
