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Used Engines
BMW I3 gasoline (range extender, Rex) - Engine (2014-2020)
$2,824.00
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BMW i3 REx Range Extender Engine K37 For 2014-2020 i3 REx models
This bold 647cc 2-cylinder engine, borrowed from motorcycles, powers your i3's generator to push your range further.
Engine Specifications:
| Category | Details |
|---|---|
| Engine Code | K37 |
| Displacement | 647cc inline-2 |
| Horsepower | 34 HP |
| Fuel System | Electronic Fuel Injection |
| VIN Identifier | 5th digit = D |
| Engine | Rear subframe position |
Key Features:
Complete Long Block Assembly: Includes the fully assembled engine block, crankshaft, pistons, cylinder head, and valvetrain.
Includes Intake & Exhaust Manifolds: Comes with both manifolds pre-attached, saving installation time.
Backed by Warranty: Provides a reliable warranty on the entire assembly for peace of mind.
Pricing Options:
| Mileage Range | Price | Condition |
|---|---|---|
| 30K-60K miles | $ 2,824.00 | Like-new condition |
| 60K-90K miles | $ 2,612.00 | Light use, excellent condition |
| 90K-120K miles | $ 2,406.00 | Good condition, minor wear |
| 120K-150K miles | $ 2,200.04 | Functional for budget repairs |
Shipping Information:
Standard shipping 5-7 business days.
Expedited shipping are available for an extra cost.
Frequently Asked Questions?
Q: How do I confirm REx compatibility?
A: Make sure your BMW i3’s model year is 2014-2020 and check the engine’s part number against our catalog. This ensures the range extender engine fits perfectly and your ride stays powerful and reliable.
Q: What maintenance does the REx need?
A: Keep your BMW i3 REx engine strong by regularly changing the oil and filter. Also, check coolant levels and spark plugs to avoid breakdowns. This simple care keeps your range extender ready to power you further without fail.
Q: How often should I run the REx?
A: To keep your BMW i3’s range extender engine in top shape, run it regularly even if just for short bursts. This prevents fuel from stagnating and keeps all parts sharp and ready.
Ready to Order?
Order this powerful gasoline engine for 2014-2020 models now and take control of your drive. Don't wait equip your ride with reliable performance that takes you further and dares to go beyond limits.
Fit Notes:
I3 Gasoline Range Extender Rex 2016, 2019, 2018, 2020, 2014, 2015, 2017
If for any valid reason you are not completely satisfied with your purchase, you may return any item in its original condition within 60 days of receipt and we will gladly provide a complete refund, replacement, or an exchange.
All orders can be returned for a full refund within 60 days of receipt.
For establishments with a forklift and access for an 18-wheeler, the shipping fee is $250. For establishments without a forklift and access for an 18-wheeler, the shipping fee is $400.
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