Hydraulic - Seal Replacement Kits

Restore hydraulic performance and stop leaks with the right seal replacement kit for your pallet jack or forklift. Our Seal Replacement Kits collection includes complete hydraulic cylinder seal kits, pump seal kits, and o-ring assortments matched to the most common makes and models in the industry — so you can complete a full hydraulic rebuild without hunting down individual seals.

Compatible equipment brands include Crown, Toyota, BT Prime Mover, Multiton, Raymond, Yale, Hyster, Uline, and other major OEM and aftermarket manufacturers. Kits are matched by equipment make, model, and serial number range, as well as by pump manufacturer and cylinder bore size.

Kit types available:

  • Hydraulic Cylinder Seal Kits — all seals, o-rings, and wipers needed to rebuild a lift cylinder
  • Pump Seal Kits — seals and o-rings for hydraulic pump units (Monarch, Parker, Haldex, and others)
  • Complete Hydraulic Rebuild Kits — cylinder and pump seals bundled for a full system overhaul
  • O-Ring Assortments — general-purpose metric and SAE o-ring sets for field repairs

How to select the right seal kit: Identify your equipment's make, model, and serial number from the data plate. For pump seal kits, note the pump manufacturer (often stamped on the pump body) — common suppliers include Monarch, Parker, and Haldex. For cylinder kits, note the cylinder bore diameter and rod diameter. Matching these specs ensures the seals seat correctly and hold pressure.

Common use cases: Scheduled hydraulic maintenance, repairing slow or failed lift function, stopping oil weeping from cylinder rods or pump fittings, and full hydraulic rebuilds during equipment refurbishment. Replacing seals proactively at 2,000–3,000 operating hours is standard practice for high-cycle equipment.

All kits ship from our US warehouse. Use the brand and model filters above to find your kit, or search by pump manufacturer and model for a direct match.

  • DA BK100, Hydraulic Seal Kit for Dayton Pallet Jacks
    Up to $8.85 off

    DA BK100

    Regular price $31.44
    Sale price $31.44 Regular price $40.29
  • ML BK100, Seal Kit
    Up to $12.15 off

    ML BK100

    Regular price $31.44
    Sale price $31.44 Regular price $43.59
  • CR 819934, Hydraulic Seal Kit for Crown PTH50
    Up to $17.45 off

    CR 819934

    Regular price $54.64
    Sale price $54.64 Regular price $72.09
  • PC G090001, Seal Kit
    Up to $26.04 off

    PC G090001

    Regular price $23.69
    Sale price $23.69 Regular price $49.73
  • MO 12E155, Seal Kit
    Up to $12.15 off

    MO 12E155

    Regular price $31.44
    Sale price $31.44 Regular price $43.59
  • MO 3025, Seal Kit
    Up to $10.15 off

    MO 3025

    Regular price $43.73
    Sale price $43.73 Regular price $53.88
  • JT PT2748W-84, Jet PT2748W-84 Hydraulic Relief Valve Kit for Manual Pallet Jack Models
    Up to $13.48 off

    JT PT2748W-84

    Regular price $59.40
    Sale price $59.40 Regular price $72.88
  • BT 22306, Seal Kit (Pump Cylinder Kit)
    Up to $2.54 off

    BT 22306

    Regular price $16.55
    Sale price $16.55 Regular price $19.09
  • IN K-77-TH, Interthor hydraulic seal kit for K77 and K85
    Up to $16.96 off

    IN K-77-TH

    Regular price $70.18
    Sale price $70.18 Regular price $87.14
  • EC PAL-PRK-U, Seal Kit
    Up to $5.67 off

    EC PAL-PRK-U

    Regular price $89.05
    Sale price $89.05 Regular price $94.72
  • HL HSP-ASSY-B, Seal Kit
    Up to $8.21 off

    HL HSP-ASSY-B

    Regular price $53.36
    Sale price $53.36 Regular price $61.57
  • BG 810-456-PT, Hydraulic Seal Kit for Blue Giant ROI-5, ROI-55, and MTS 2000
    Up to $13.44 off

    BG 810-456-PT

    Regular price $37.39
    Sale price $37.39 Regular price $50.83
  • LF PR8577, Seal Kit, Ergo Lift

    LF PR8577

    Call for Price
  • 800065185, BISHAMON SEAL KIT
    Up to $18.09 off

    800065185

    Regular price $31.80
    Sale price $31.80 Regular price $49.89
  • LF 20250, Pump Piston Kit
    Up to $12.79 off

    LF 20250

    Regular price $21.55
    Sale price $21.55 Regular price $34.34
  • LF 10278-MP, Seal Kit
    Up to $14.01 off

    LF 10278-MP

    Regular price $37.64
    Sale price $37.64 Regular price $51.65
  • 40193, BLUE GIANT SEAL KIT
    Up to $13.44 off

    40193

    Regular price $37.39
    Sale price $37.39 Regular price $50.83
  • PC S0004010035, Relief valve kit for Pramac GS22 and GS23

    PC S0004010035

    Call for Price
  • 33909, BT SEAL KIT
    Up to $8.40 off

    33909

    Regular price $36.84
    Sale price $36.84 Regular price $45.24
  • LF 20278, Seal Kit
    Up to $11.45 off

    LF 20278

    Regular price $41.60
    Sale price $41.60 Regular price $53.05
  • EC SST-PRK, Seal Kit

    EC SST-PRK

    Call for Price
  • 2501-103465, BT SEAL KIT
    Up to $22.11 off

    2501-103465

    Regular price $58.93
    Sale price $58.93 Regular price $81.04
  • GSK 520, Hydraulic Seal Kit for 2-INCH Bore, 1.25-INCH Rod Diameter

    GSK 520

    Regular price $35.49
    Sale price $35.49 Regular price
  • GSK 515, Hydraulic Seal Kit for Forklift & Pallet Jack Cylinders

    GSK 515

    Regular price $44.91
    Sale price $44.91 Regular price
  • RL T5AOK-SLIM, Slim Seal Kit
    Up to $9.40 off

    RL T5AOK-SLIM

    Regular price $53.45
    Sale price $53.45 Regular price $62.85
  • HY 2048665, Seal kit for Hyster W40Z, W45Z, W50Z

    HY 2048665

    Regular price $84.04
    Sale price $84.04 Regular price $74.66
  • GW 519, Complete Seal Kit
    Up to $22.46 off

    GW 519

    Regular price $47.05
    Sale price $47.05 Regular price $69.51
  • Up to $12.57 off

    CR 78654

    Regular price $81.68
    Sale price $81.68 Regular price $94.25
  • CR 40000-TH, Crown Seal Kit
    Up to $11.58 off

    CR 40000-TH

    Regular price $67.60
    Sale price $67.60 Regular price $79.18
  • CR 40000, Crown Seal Kit
    Up to $11.58 off

    CR 40000

    Regular price $67.60
    Sale price $67.60 Regular price $79.18
  • Up to $16.62 off

    CR 118893

    Regular price $68.46
    Sale price $68.46 Regular price $85.08
  • BT 11132-TH, Bt Seal Kit
    Up to $13.88 off

    BT 11132-TH

    Regular price $64.00
    Sale price $64.00 Regular price $77.88
  • 1993-1947, SUPER SEAL KIT
    Up to $22.75 off

    1993-1947

    Regular price $50.12
    Sale price $50.12 Regular price $72.87
  • 800032087, SUPER SEAL KIT

    800032087

    Call for Price
  • 800017815, CR SUPER SEAL KIT
    Up to $13.40 off

    800017815

    Regular price $66.40
    Sale price $66.40 Regular price $79.80
  • BJ 21719, Seal Kit for Big Joe, Lift-Rite, Multiton
    Up to $2.91 off

    BJ 21719

    Regular price $75.81
    Sale price $75.81 Regular price $78.72

Hydraulic - Seal Replacement Kits — fitment by model

Fits models Part # Wheel size Bore Price
4YX97 DA BK100 $31.44
5500, ML55, ML55-2 ML BK100 $31.44
PTH50 CR 819934 $54.64
GS22 PC G090001 $23.69
ECO I-55 MO 12E155 $31.44
ML45, ML50, ML55, ML70, MLX55, Mini, Miney MO 3025 $43.73
PT2748W JT PT2748W-84 $59.40
L 2000, L 2000-U, L 2300, L 2300-U BT 22306 $16.55
K77, K85 IN K-77-TH $70.18
PAL, PLH EC PAL-PRK-U $89.05
ROI-5, ROI-55, MTS 2000 BG 810-456-PT $37.39
RG30 LF PR8577 Call
BS-55 800065185 $31.80
L-55, L50, LF50 Low Profile 4way, LR2055 LF 20250 $21.55
L-50, L169 LF 10278-MP $37.64
ROI-5, ROI-55, MTS 2000 40193 $37.39
GS22, GS23 PC S0004010035 Call
L2000, L2300, L2000-U, L2300-U 33909 $36.84
L-55, L50 LF 20278 $41.60
Blackjack (SST), SST EC SST-PRK Call
L-series, LHM230 2501-103465 $58.93
T Series, E Series RL T5AOK-SLIM $53.45
W40Z, W45Z HY 2048665 $84.04
Pallet Jacks GW 519 $47.05
PTH50, PTH-(OLDER) CR 78654 $81.68
PTH CR 40000-TH $67.60
PTH CR 40000 $67.60
SP3000 CR 118893 $68.46
L2000, L2300, L2000-U, L2300-U BT 11132-TH $64.00
PTH50 1993-1947 $50.12
272657, 272748, BS-55, BS-65 800032087 Call

Not sure which fits? Call 1-800-669-7554.