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PSC Jeep JL Big Bore XD Steering Cylinder Assist Kits

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PSC has taken the Jeep JL steering system back to the drawing board and engineered their exclusive Jeep JL Big Bore XD steering cylinder assist kits. These kits are engineered to solve the original steering issues, and efficiently handle the increased torque loads on vehicles equipped with any combination of 37 in. or larger tire sizes, upgraded aftermarket axles, or differential lockers.

Features and benefits of upgrade kit include:

* Increased torque output
* Relieves stress on steering gearbox and frame mounts
* Steering assist cylinder acts as a dynamic steering stabilizer

Results 1 - 25 of 48

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.5 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0066

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder, 6.75 in. Aftermarket Axle, 1.5 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0095

Not Yet Reviewed

Cannot be shipped Internationally if ordered today

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Cannot be shipped Internationally if ordered today

Hydraulic Steering Kits, Big Bore XD Series, Cast Iron, 8.0 in, Stroke,D60 Axles,High Pressure Hoses,Stainless Steel Fittings, Jeep, Kit

Part Number: PFN-S0138

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.25 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0049

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.375 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0050

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.5 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0051

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Cylinder 6.75 in., Aftermarket Axle, 1.5 in. Offset Tie Rod, Jeep, Kit

Part Number: PFN-S0052

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.625 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0053

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.75 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0061

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 2.0 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0062

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., OE Axle, OE Tie Rod, Jeep, Kit

Part Number: PFN-S0063

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.25 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0064

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.375 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0065

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Cylinder 6.75 in., Aftermarket Axle, 1.5 in. Offset Tie Rod, Jeep, Kit

Part Number: PFN-S0067

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.625 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0068

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 1.75 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0069

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 6.75 in., Aftermarket Axle, 2.0 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0070

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.25 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0071

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.375 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0072

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.5 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0073

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Cylinder 8.00 in., Aftermarket Axle, 1.5 in. Offset Tie Rod, Jeep, Kit

Part Number: PFN-S0074

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.625 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0075

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder 8.00 in., Aftermarket Axle, 1.75 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0076

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder, 8.00 in. Aftermarket Axle, 1.375 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0101

Not Yet Reviewed

Cannot be shipped Internationally if ordered today

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Cannot be shipped Internationally if ordered today

Hydraulic Steering Kit, Big Bore XD Steering Cylinder Assist, Steering Box, Pump, Cylinder, 8.00 in. Aftermarket Axle, 1.5 in. Tie Rod, Jeep, Kit

Part Number: PFN-S0102

Not Yet Reviewed

Cannot be shipped Internationally if ordered today

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Cannot be shipped Internationally if ordered today

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