TRX400EX / 400X Oil Change Kit – K&N Filter + Motorex 10W-40
Honda TRX400EX / TRX400X Oil Change Kit – K&N Filter + Motorex 10W-40
The best of the best for your 400EX.
Trusted by our techs as the highest-quality oil change kit for the TRX400EX and 400X, this package delivers premium performance and protection with no compromises.
With a filter change, the 400EX engine takes approximately 1.95 quarts of oil. We recommend filling the oil tank with about 1 4/5 quarts, running the engine briefly at idle, then topping off to the full mark after shutdown and inspection.
📦 What's Included:
- K&N Performance Oil Filter KN-113
- Motorex Synthetic 4T Engine Oil 10W-40 – 2 Liters (2.1 US Quarts)
⭐ Key Features:
- High-Flow K&N Filter for increased oil flow and superior filtration
- Motorex Full Synthetic 10W-40 oil for max engine protection and performance
- Perfect fill amount for a complete oil + filter change
- Formulated for aggressive off-road and recreational use
✅ Fitment:
- 1999–2009 Honda TRX400EX
- 2009–2014 Honda TRX400X
🛠️ Specifications:
- Oil Type: Full Synthetic
- Viscosity: 10W-40
- Oil Capacity: 1.95 qt (with filter)
- Filter Model: K&N KN-113
- Product Use: Engine
- Riding Style: ATV / Off-Road
📌 Note:
After oil change, always verify oil level with dipstick after warm-up. Do not overfill. Professional installation recommended.
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
