Stellar Automotive Group A604 Boost Valve Bushing fits Chrysler 89-93

Stellar Automotive Group A604 Boost Valve Bushing – Compatible for Chrysler 1989-1993

Fix erratic shifting, harsh/soft changes, and low line pressure issues with this precision-machined boost valve bushing from Stellar Automotive Group.

The factory boost valve bore in the A604 (41TE) transmission commonly wears out from repeated movement, causing unstable line pressure and the classic delayed/harsh shift problems (often with P0740 or P1811 codes). This upgraded bushing restores tight clearance, stabilizes pressure, and prevents the valve from sticking or wandering — delivering smooth, firm shifts and protecting solenoids and clutches in these early 4-speed automatics.

Perfect fit for popular 1989-1993 models including:

• Chrysler New Yorker, LeBaron
• Dodge Spirit, Acclaim, Shadow, Sundance, Caravan
• Plymouth Voyager, Acclaim

Common symptoms this bushing resolves:

• Delayed or harsh shifting
• Erratic line pressure (soft then hard shifts)
• No 3rd or 4th gear (pressure loss)
• P0740, P1811 solenoid-related codes

Easy installation – drop the valve body, replace the worn bushing, and reassemble. Professional installation recommended for best results.

Note: All parts are distributed, not designed or manufactured, by Stellar Automotive Group.

Add this essential A604 boost valve bushing to your cart today and bring back smooth, reliable shifting!