Performance Water Pump Timing Chain & Head Gasket Kit for Jeep Commander (2006-2007) 4.7L

Comprehensive Master Timing, Cooling & Head Gasket Kit for 2006-2007 Jeep Commander (XK)

What it Does: The complete timing chain, water pump, and head gasket kit replaces worn valvetrain drives, degraded seals, and cooling hardware on the 2006-2007 Commander to prevent catastrophic valve-to-piston interference and restore combustion integrity.

The Stock Jeep Commander Valvetrain & Cooling Vulnerabilities

The factory 4.7L PowerTech V8 in the XK platform is notorious for thermal sensitivity and valvetrain decay. Over time, original composite head gaskets deteriorate, yielding compression leaks across combustion chambers and coolant consumption. Compounding this, the factory plastic-faced timing chain guides embrittle and crack from thermal cycling, which bleeds off hydraulic tensioner pressure. Once chain slack occurs, erratic camshaft synchronization and jumped timing follow, risking dropped valve seats and terminal piston contact. Additionally, stock water pump bearings and internal seals wear out, causing rapid thermal spikes that warp aluminum cylinder heads.

The Engineering Solution

This master overhaul package addresses every primary failure point of the 4.7L PowerTech. Multi-Layer Steel (MLS) cylinder head gaskets deliver superior micro-sealing under high cylinder pressures and thermal expansion. Heat-treated, fatigue-resistant steel link chains paired with heavy-duty guide rails eliminate slap and resist stretching under load. A high-flow replacement water pump prevents localized coolant boiling, while new torque-to-yield head bolts are designed to ensure uniform clamping force across the deck. The included camshaft sprocket features the application-correct 30-tooth JTEC pattern to maintain precise crankshaft-to-camshaft phase correlation without triggering DTC misfire codes.

What's Included

• 1 Multiple Layers Steel (MLS) Head Gasket
• 1 Valve Cover Gasket
• 1 Set of Valve Stem Seals
• 1 Intake Manifold Gasket
• 1 Exhaust Manifold Gasket
• 1 Front Camshaft Seal
• 1 Set of O-Rings
• 1 Package of Small Ancillary Gaskets
• 28 Cylinder Head Bolts (20 Long Bolts, 8 Short Bolts)
• 1 Lower Timing Chain (70 Links)
• 2 Secondary Timing Chains (106 Links each)
• 1 Right Secondary Tensioner
• 1 Left Secondary Tensioner
• 1 Primary Tensioner & Guide Plate Assembly
• 2 Tensioner Guide Rails
• 2 Fixed Guide Rails
• 1 Right Camshaft Sprocket (30 Teeth with JTEC Ring)
• 1 Left Camshaft Sprocket (30 Teeth without Ring)
• 1 Crankshaft Sprocket (25 Teeth)
• 1 Primary Idler Sprocket (50 Teeth)
• 1 Secondary Idler Sprocket (Dual 30/30 Teeth)
• 1 Engine Water Pump
• 1 Engine Oil Pump

Technical Specifications

Compatibility

• 2006 Jeep Commander (XK) 4.7L V8
• 2007 Jeep Commander (XK) 4.7L V8

Frequently Asked Questions & Fitment Warnings

Does this fit the XK Commander?

Yes, this is a direct fit for the 2006-2007 Jeep Commander equipped with the 4.7L PowerTech engine. It is not compatible with 3.7L V6 or 5.7L HEMI V8 models, nor 2008+ 4.7L dual-plug variants.

Can I reuse the original cylinder head bolts during assembly?

No, the 4.7L PowerTech utilizes torque-to-yield (TTY) cylinder head bolts that permanently stretch during original installation; always install the 28 new fasteners included in this kit following the factory multi-step torque-plus-angle sequence.

The Jeep Durability Standard

Built to handle severe off-camber utility and heavy-load towing cycles, this complete rebuild solution delivers the mechanical stamina and structural clamping required to keep your 4x4 powertrain dependable in remote backcountry conditions.