Boostline Connecting Rod Kit | Evo X 4B11T 143.7 | ARP625+
$2,297.26
Zip and humm are available over the phone: (07) 5619 7869
Centre-to-centre length 144.00 mm · Big end bore 55.055 mm · Pin end bore 23.00 mm · Bolt diameter 3/8 in
Available to order – dispatched in 1-2 business days
Check fitment by rego or VINFast AU-Wide Shipping
Returns within 30 days
12 month warranty
Will it fit your vehicle?
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Mitsubishi | Lancer | Evolution X (2007-2015) | — | — |
A dash means the listing does not narrow it down that far (for example no build dates are listed). Check with us if your vehicle was built near a model change.
Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.
Description
Boostline forged connecting rods for the Evo X 4B11T: 143.70 mm (5.657 in) centre-to-centre, forged 4340 steel and I-beam design, fitted with ARP 625+ rod bolts (3/8 in).
What’s in the box
- Boostline connecting rod set (part MI5657-905+)
- ARP 625+ rod bolts, part BT61601-625
- Bronze pin-end bushings
- CMM inspection card with the measured dimensions
Matching them to your Evo X 4B11T
Key dimensions: big-end bore 55.055 mm (2.168 in); big-end width 21.87 mm (0.861 in); crank journal 52.00 mm (2.047 in); pin-end bore 23.00 mm (0.906 in); pin bushing width 19.86 mm (0.782 in); average weight 625 g.
Check the centre-to-centre length against the rod length your pistons are designed for, the big-end bore and width against your crank, and the pin end against your wrist pin diameter before you order.
Specifications
| Average Gram Weight | 625 gr |
|---|---|
| Big End Bore | 55.055 mm |
| Big End Width | 21.87 mm |
| Bolt Diameter | 3/8 in |
| Bolt Part Number | BT61601-625 |
| Centre-to-centre length | 143.70 mm |
| Connecting Rod Journal Diameter | 52.00 mm |
| Connecting Rod Material | Forged 4340 Steel |
| Connecting Rod Type | I-Beam |
| Journal Size | 52.00 mm |
| Main Bearing Bore Diameter | 55.005 mm |
| Material | Forged 4340 Steel |
| Pin End Bore | 23.00 mm |
| Rod Type | I-Beam |
| Wrist Pin Journal Bushing Width | 19.86 mm |
More: all Boostline performance conrods · Mitsubishi 4B11 forged pistons · Boostline
Boostline part number: MI5657-905+
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Available to order – dispatched in 1–2 business days.
- Freight is quoted after you order – we confirm the cost to your address before dispatch.
- Delivery usually takes 2–10 business days after dispatch, depending on your location.
- Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.
Freight question? Call us on (07) 5619 7869.
Additional information
| Make | Mitsubishi |
|---|
Warranty: 12 months from Willys Workshop
Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.
- 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
- Wrong fit: if a part covered by our Fitment Guarantee doesn’t fit, we pay the return freight both ways and there’s no restocking fee.
- Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
- Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.
Full details: Returns & Refund Policy and Terms & Conditions.
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
