- Century 3.1L Vin J 8Th Digit W/O Idler Pulley On Timing Cover 2003
Buick Century (3.1L, VIN J, 8th digit), w/o idler pulley on timing cover 3.1L Engine (2003)
4.5 on Trustpilot · 335 reviewsHow ordering works
- 1Enter or confirm your VIN
- 2We verify exact fitment for your vehicle
- 3Flat freight shown up front — no surprises
- 490-day warranty included on every part
- 5We photograph & confirm the unit before it ships
What's included with this engine
You're buying a complete engine assembly — not a bare block. Here's exactly what arrives bolted to it, and the handful of accessories your mechanic moves over from your current engine during the install.
Included with your engine
Already assembled — ships as one unit- Long block — fully assembled
- Short block
- Cylinder head
- Crankshaft
- Camshaft
- Pistons
- Intake manifold
- Exhaust manifold
- Oil pan
- Timing cover
Not included — transfer these over
Reused from your current engine- Wiring harness
- Bolt-on accessories
Split this into easy monthly payments
Pre-qualify with PayTomorrow in minutes — all credit types welcome, and checking your options won’t affect your credit score. You’ll see your approved amount and terms instantly.
⚡ Instant decision · 🛡 Soft check (no score impact) · ✅ All credit types welcome
Pre-qualify now — it’s free →Financing provided by PayTomorrow, a third-party lender. Approval, rate, and terms are set by the lender. Not a guarantee of approval.
About this part
Buick Century 3.1L V6 Engine For 2003 models
This 175HP pushrod V6 delivers smooth, reliable power for your fifth-gen Century sedan.
Engine Specifications:
| Category | Details |
|---|---|
| Engine Code | LG8 |
| Displacement | 3.1L V6 |
| Horsepower | 175 HP |
| Torque | 195 lb-ft |
| Fuel System | Sequential Fuel Injection |
| Valvetrain | OHV 12-valve |
| VIN Requirement | 8th digit = J |
| Timing System | Chain-driven |
| Engine Block | Cast iron with aluminum heads |
Key Features:
Complete Long Block: This 2003 Buick Century 3.1L engine long block delivers everything you need for a fearless rebuild. Without an idler pulley on the timing cover, it’s engineered for a precise fit and unstoppable power to reignite your ride’s performance.
2003-Specific Design: Engineered exclusively for the 2003 Buick Century 3.1L with VIN 8th digit J, this powerhouse features a timing cover without an idler pulley, ensuring a perfect fit and uncompromising performance tailored to your ride’s exact specs.
Direct Replacement: Perfect fit for 2003 Century
Proven Reliability: Designed for unstoppable performance, the 2003 Buick Century 3.1L engine with VIN 8th digit J delivers proven reliability. Its unique configuration without an idler pulley on the timing cover ensures rugged durability and bold power that stands the test of time.
Pricing Options:
| Mileage Range | Price | Condition |
|---|---|---|
| 30K-60K miles | $ 1,284.00 | Like-new condition |
| 60K-90K miles | $ 1,088.22 | Light use, excellent condition |
| 90K-120K miles | $ 896.44 | Good condition, minor wear |
| 120K-150K miles | $ 720.00 | 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 this is the correct 2003 engine?
A: To confirm this 2003 Buick Century 3.1L engine is the right fit, check that the 8th digit of your VIN is J, matching the engine model, and ensure your engine does not have an idler pulley on the timing cover.
Q: What maintenance is critical?
A: Keep your 2003 Buick Century 3.1L engine running strong with regular oil changes and by checking that the belts near the timing cover are properly aligned, especially since there’s no idler pulley.
Q: Is this engine interference or non-interference?
A: The 2003 Buick Century 3.1L engine is an interference engine. This means maintaining the timing components is crucial any failure could lead to serious engine damage. Stay sharp and keep your engine protected with regular upkeep.
Ready to Order?
Take charge and upgrade your ride with this powerful 2003 Buick Century 3.1L engine. Ready to order? Don’t wait fuel your vehicle’s performance and dominate the road now!
Tested, VIN-matched, and guaranteed
VIN-Verified Fit
We match the part to your vehicle's VIN and confirm exact fitment before we ship — so it fits the first time. Free cancellation within 24 hours.
Works on Arrival, Guaranteed
Every unit is tested before it ships. If it arrives defective, we replace it fast — and in the rare case we can't replace it, you get a full refund.
90-Day Warranty
A real parts-replacement warranty, included — with extended coverage available.
Heavy freight item, shipped fully insured and tracked. Freight is a flat $250 commercial / $400 residential, shown at checkout — no hidden fees, no freight-quote runaround.
Want a better price on this part?
Call us before you order — we’ll check if there’s an extra discount available on this exact part for your vehicle. Two minutes, no pressure.
☎ Call (206) 686-6866Ask us about a better price
One quick call and we’ll see if we can get you a better discount on this part. Real specialist, no call center.
☎ Call (206) 686-6866