Mitsubishi

Bolt, Rear Suspension Crossmember 12x105mm (Genuine) EVO1-3, GSR1.8T

$15.00 inc. GST

Product details

  • Vendor Mitsubishi
Description & Specification

Bolt – Rear Suspension Crossmember 12x105mm (Genuine) EVO1-3(MB809344)
Genuine Mitsubishi rear suspension crossmember bolt. Designed for a precise fit and factory-grade strength on EVO1-3, GSR1.8T models.
Commonly seized due to rust in the body shell — ideal for replacement during rear subframe or suspension service.

⚙️ Steps & Tips : Removing Seized/Rusted Bolt

  1. Pre-soak the bolt

    • Spray penetrating oil generously around the bolt head and threads (if accessible).

    • Let it sit for several hours or overnight. Reapply multiple times.

  2. Clean exposed threads

    • Use a wire brush to remove surface rust. This helps the penetrant and tools grip better.

  3. Loosen slightly, then tighten

    • Try moving the bolt back and forth gently instead of forcing it all one way — this can help the rust break free gradually.

  4. Apply heat

    • Use a torch to heat the metal surrounding the bolt (not the bolt itself).

    • The expansion of the surrounding metal can break the rust bond.

    • Let it cool slightly, then apply more penetrant — it will wick in as the metal contracts.

  5. Use impact over brute force

    • A quality impact gun delivers shock that helps break corrosion bonds more effectively than steady pressure.

  6. If the bolt spins but won’t come out

    • It may be seized inside a rusted inner sleeve or captive nut inside the chassis.

    • Continue alternating heat, penetrant, and impact.

    • If the captive nut breaks free and spins inside the chassis, access may need to be made (cut or open the floor to grip it — common on Evos).

  7. Last resort – cut or drill

    • If the bolt snaps, cut through the bolt between the subframe and body using a reciprocating saw or cut-off wheel.

    • Drill out the remaining bolt and clean the hole before re-tapping or replacing the nut.