Complete replacement of all engine and transmission mounts on a 2014 Ram 2500 with 6.7L Cummins diesel engine, including front engine mounts, rear mount, and transmission mount.

Warnings

Tools required

Parts

• Front left engine mount × 1 — Use OEM specification
• Front right engine mount × 1 — Use OEM specification
• Rear engine mount × 1 — Use OEM specification
• Transmission mount × 1 — Use OEM specification

Preparation

1. Park vehicle on level, solid surface and engage parking brake
2. Disconnect negative battery cable and secure away from battery terminal
3. Raise vehicle using a lift or heavy-duty floor jack and support securely on jack stands at frame rails
4. Remove engine skid plate or belly pan if equipped
5. Spray all engine mount fasteners with penetrating lubricant and allow to soak for 15-20 minutes
6. Install engine support fixture across engine compartment or attach engine hoist to factory lift points on engine

Procedure

1. 1

   Support engine weight
   Using the engine support fixture or hoist, carefully apply upward tension to take the weight off the engine mounts. Raise engine approximately 1/4 inch to unload mounts but do not lift excessively. Verify engine is stable and secure before proceeding.
   ⚠️Ensure engine support is secure and stable before removing any mount fasteners. Check that hoist chain or support fixture will not slip during the procedure.
2. 2

   Remove driver side front engine mount
   Working from underneath the vehicle, locate the driver side (left) engine mount. Remove the through-bolt securing the mount to the engine bracket. Remove the mount-to-frame bolts securing the mount to the frame rail. Remove the engine mount-to-block bolts if necessary to clear the mount. Extract the mount from between the engine and frame.
   Torque spec

   Through-Bolt85 Nm (63 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
3. 3

   Remove passenger side front engine mount
   Working from underneath the vehicle on the passenger side (right), remove the through-bolt securing the mount to the engine bracket. Remove the mount-to-frame bolts securing the mount to the frame rail. Remove the engine mount-to-block bolts if necessary. Extract the mount from between the engine and frame. Note the orientation and any shims or spacers for reinstallation.
   Torque spec

   Through-Bolt85 Nm (63 lb-ft)

   Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)

   Engine Mount-to-Block Bolts65 Nm (48 lb-ft)
4. 4

   Remove rear engine mount
   Locate the rear engine mount at the back of the engine block. This mount may require access from both above and below. Remove the mount through bolt first, then remove the mounting bolts securing the mount to the engine and frame/crossmember. Carefully extract the mount, noting its orientation and any alignment features.
   Torque spec

   Mount Through Bolt119 Nm (88 lb-ft)

   Mounting Bolts64 Nm (47 lb-ft)
5. 5

   Remove transmission mount
   Position a hydraulic jack with a wood block under the transmission pan for support. Apply slight upward pressure to support transmission weight. Remove the transmission mount bolts securing the mount to the transmission crossmember and to the transmission case. Lower the jack slightly if needed to clear the mount, then remove the mount.
   ⚠Support transmission weight before removing mount to prevent strain on output shaft or transfer case connections.
   Torque spec

   Transmission Mount Bolts65 Nm (48 lb-ft)
6. 6

   Inspect mounting points and clean surfaces
   With all mounts removed, inspect all mounting surfaces on the engine block, frame rails, and crossmember for cracks, damage, or excessive corrosion. Use a wire brush to clean all mounting bolt holes and surfaces. Check mounting brackets on engine for damage or cracks. Replace any damaged brackets before installing new mounts.
7. 7

   Install new driver side front engine mount
   Position the new driver side engine mount between the engine bracket and frame rail, ensuring proper orientation matches the original. Install the engine mount-to-block bolts finger-tight first if bracket was removed. Install the mount-to-frame bolts finger-tight. Insert and install the through-bolt finger-tight. Verify alignment before tightening.
8. 8

   Install new passenger side front engine mount
   Position the new passenger side engine mount between the engine bracket and frame rail in the correct orientation. Install any shims or spacers that were noted during removal. Install the engine mount-to-block bolts finger-tight, then the mount-to-frame bolts finger-tight, followed by the through-bolt finger-tight. Check alignment.
9. 9

   Install new rear engine mount
   Position the new rear engine mount in its mounting location, ensuring correct orientation and alignment with engine and frame/crossmember. Install the mounting bolts to the engine and frame finger-tight first. Insert the mount through bolt and install finger-tight. Verify all components are properly aligned.
10. 10

    Install new transmission mount
    Using the hydraulic jack under the transmission, raise or lower the transmission as needed to align with the new mount position. Position the new transmission mount between the transmission and crossmember. Install the transmission mount bolts finger-tight. Verify proper alignment and that mount is not twisted or misaligned.
11. 11

    Lower engine to settle mounts
    Carefully lower the engine using the support fixture or hoist until the full weight of the engine is resting on the new mounts. Rock the engine slightly side-to-side to ensure mounts are properly seated and aligned. This allows mounts to compress to their normal operating position before final torquing.
12. 12

    Torque all mount fasteners to specification
    With engine weight on mounts, torque all fasteners in the following sequence: First, torque all engine mount-to-block bolts to 65 Nm (48 lb-ft). Second, torque all engine mount-to-frame bolts to 75 Nm (55 lb-ft) and mount-to-frame bolts to 82 Nm (61 lb-ft) as applicable. Third, torque all through-bolts to 85 Nm (63 lb-ft) and mount through bolt to 119 Nm (88 lb-ft) as applicable. Fourth, torque mounting bolts to 64 Nm (47 lb-ft) as applicable. Finally, torque transmission mount bolts to 65 Nm (48 lb-ft). Double-check all fasteners for proper torque.
    ⚠All mount fasteners are CRITICAL torque specifications. Improper torque can result in mount failure or damage to engine components.
    Torque spec

    Engine Mount-to-Block Bolts65 Nm (48 lb-ft)

    Engine Mount-to-Frame Bolts75 Nm (55 lb-ft)

    Through-Bolt85 Nm (63 lb-ft)

    Mount Through Bolt119 Nm (88 lb-ft)

    Mounting Bolts64 Nm (47 lb-ft)

    Transmission Mount Bolts65 Nm (48 lb-ft)
13. 13

    Remove engine support and lower vehicle
    Remove the engine support fixture or disconnect the engine hoist. Remove the hydraulic jack from under the transmission. Reinstall the engine skid plate or belly pan if equipped, torquing cover bolts to 22 Nm (16 lb-ft). Lower the vehicle from jack stands.
    Torque spec

    Cover Bolts22 Nm (16 lb-ft)

Reassembly

1. Reconnect negative battery cable
2. Verify all tools and equipment are removed from engine compartment
3. Check that no fasteners, brackets, or hardware were left disconnected

Verification

• Start the engine and verify no unusual vibrations or noises are present at idle
• With engine running, have an assistant shift through all transmission gear selections while you inspect mounts for excessive movement or separation
• Test drive the vehicle and verify smooth operation with no excessive engine movement during acceleration or deceleration
• After test drive, re-inspect all mount fasteners for proper torque and verify no loosening has occurred
• Check for any contact between engine/transmission and frame rails or firewall during operation

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