Chrysler 545RFE 5-Speed Automatic · Chrysler/Dodge/Jeep/RAM · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
2003–2012 Jeep Grand Cherokee (4.7L/5.7L Hemi); 2003–2012 Dodge Durango; 2003–2012 Dodge Ram 1500 (Hemi/5.7L); widely used behind Hemi applications
| Configuration | 5-speed automatic with overdrive |
|---|---|
| Gear Ratios | 1st 3.00:1 · 2nd 1.67:1 · 3rd 1.00:1 · 4th 0.75:1 · 5th 0.67:1 · Rev 3.00:1 |
| Fluid Type | Mopar ATF+4 |
| Fluid Capacity | 12.5 qts total, 6.5 qts service refill |
The 545RFE solenoid pack is the most common failure — it controls all shift functions and TCC. Pack failure causes limp mode and erratic shifting.
Symptoms: 2nd-gear limp mode; P0750-series codes; erratic upshifts under Hemi power
The valve body separator plate wears at the regulator bore, causing line pressure issues and cross-leak between circuits.
Symptoms: Multiple gear slip; harsh engagements; P0868 low pressure code
High Hemi torque causes low/reverse clutch failure at high mileage.
Symptoms: Slip or no Reverse; no 1st gear manual hold
Full disassembly. Solenoid pack replaced. Valve body separator plate replaced. Low/reverse clutch pack replaced. All clutch packs replaced. Full ATF+4 soft parts kit. Converter flushed.
ATF+4 every 30,000 miles. The 545RFE is reliable behind Hemi engines when maintained. Solenoid pack is the weak link — replacement at 100k is a good preventive measure.
Solenoid pack failure is the most common cause of 545RFE limp mode. Solenoid pack replacement resolves most cases without a full rebuild.
Yes — the 545RFE was designed for Hemi applications and handles that torque well when maintained. Solenoid pack is the main wear item.
The 65RFE/66RFE/68RFE family replaced it starting around 2011–2012 with 6-speed units.
Mopar ATF+4. Do not substitute.
$1,700–2,400. 2–3 day turnaround.
Free diagnostic, written estimate, lifetime warranty. Chicago's 545RFE rebuild specialists since 1987.
