3.5L Engine Complete Assembly for 2018-2020 Honda Pilot
Product Notes Read before buying
This engine assembly fits vehicles equipped with the 6-speed automatic transmission ONLY. It will NOT fit models with the 9-speed or 10-speed automatic transmission. Please verify your vehicle's transmission type before ordering.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Elite | SUV | 2018 - 2020 | V6 3.5L | AWD | Automatic |
| EX | SUV | 2018 - 2020 | V6 3.5L | AWD/FWD | Automatic |
| EX-L | SUV | 2018 - 2020 | V6 3.5L | AWD/FWD | Automatic |
| LX | SUV | 2018 - 2020 | V6 3.5L | AWD/FWD | Automatic |
| Touring | SUV | 2018 - 2020 | V6 3.5L | AWD/FWD | Automatic |
| Black Edition | SUV | 2019 - 2020 | V6 3.5L | AWD | Automatic |
| Prime | SUV | 2019 - 2020 | V6 3.5L | AWD | Automatic |
Know This Engine Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this engine family:
A quick look at your own vehicle makes sure the right engine shows up:
- Verify the 6th digit of the VIN is a 5 (FWD) or 6 (AWD).
- Verify the center console has a traditional mechanical shift lever, not electronic push-buttons.
- Confirm the stamped engine code on the front of the block reads J35Y6.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Subframe Adapter / Engine Support Bar
- Honda Crankshaft Pulley Holder Tool (OEM #07AAB-PY3C100)
- High-Pressure Fuel Line Disconnect Tool
- Bidirectional Scan Tool
- Engine Hoist
Budget for these consumables at install:
- Timing Belt Kit with Water Pump & Tensioner
- Spark Plugs (OE-spec Iridium, NGK or Denso)
- Front and Rear Crankshaft Main Seals
- Valve Cover Gaskets and Spark Plug Tube Seals
- Intake Manifold Gaskets (plenum and runners)
- Oil Pan Gasket (or Hondabond RTV)
- Engine Oil (5.7 quarts of 0W-20 full-synthetic) and OEM Filter
- Engine Coolant (Genuine Honda Type 2 Blue pre-diluted, approx. 2 gallons)
What your vehicle’s computers will need after the swap:
What’s involved: Crankshaft Position (CKP) Pattern Relearn, Idle Relearn, and Immobilizer Re-marriage
sources differ: Arm 1 states only CKP and Idle relearn are required (no immobilizer work needed if keeping original ECU), while Arm 2 states an immobilizer re-marriage is required. To be safe, a professional-grade diagnostic tool (Honda HDS or equivalent) is required to perform all necessary syncs and relearns to prevent a crank-no-start or false misfire codes.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- AWD vs. FWD Oil Pan Swap: If swapping between AWD and FWD models, you must swap the oil pan and oil pickup tube from the original engine to clear the transfer case (PTU).
- High-Pressure Fuel System Safety: Relieve fuel pressure before disconnecting lines; replace one-time-use fuel joint pipes and O-rings to prevent leaks.
- Torque-to-Yield (TTY) Bolts: Cylinder head bolts and harmonic balancer crank bolts are TTY and must be replaced if removed.
- Knock Sensor Fragility: Located deep in the 'V' of the block and easily cracked during handling.
- Active Control Engine Mounts: Electronically controlled mounts must be handled carefully and reconnected properly.
Easy to get right once you know them:
- Ordering for a 9-Speed Transmission: Buying this engine for a Pilot with push-button shifting (Touring, Elite, Black Edition) instead of the mechanical 6-speed shifter.
- Reusing the Old Timing Belt: Reusing the belt on a used engine past its service interval, risking catastrophic engine failure.
- Neglecting the Crank Relearn (CKP) or Immobilizer Sync: Skipping mandatory programming steps, resulting in immediate misfire codes or a crank-no-start condition.
- Forgetting to Swap the Oil Pan: Attempting to bolt up an AWD transfer case to a FWD oil pan configuration.
Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Physically inspect connecting rod bearings and crankshaft journals before installation. (NHTSA Recall 23V-751 / Investigation PE25008)
🔎 Recommended at install: Install an aftermarket VCM Blocker/Muzzler to disable cylinder deactivation.
🔎 Recommended at install: Ensure vehicle's ECU is flashed with the latest Honda software update; replace injectors if faulty (warranty extended to 10 years/150,000 miles).
🔎 Recommended at install: Refer to TSBs A23-008 and A23-009 regarding excessive cylinder pressure or low cranking torque.
🔎 Recommended at install: Refer to TSB A16-013 for chirping noise when warm.
🔎 Recommended at install: Perform intake valve cleaning to resolve misfires, rough idling, and power loss.
Researched from factory recalls, TSBs and OEM service data (reference unit 300-10712A-5033085). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2018-2020 Honda Pilot 3.5L V6 (J35Y6): Problems, Identification, and Used Replacement
Identify the correct J35Y6 engine for your Pilot, understand catastrophic failures like connecting rod bearings, and learn when to swap it for a used OEM replacement.
Read Full Guide →Related Trouble Codes (OBD-II)
5 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Honda: 100025J6A00, 100025J6A01, 100025J6A02, 10004RLVA00, 10005RLVX00
Other: 432479
Fits Years: 2018 2019 2020
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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