KINGARC · Built to LastBrand-Owner Quality1 pc/SKU Trial OrderPrivate Label AvailableBatch Records on Request

Seals & Hydraulic Parts — Oil Seals, O-Rings, Gaskets and Hydraulic Seal Kits

Oil seals, O-rings, gaskets and hydraulic cylinder seal kits for heavy trucks, excavators and plant. Size, material and working temperature are stated per reference — send the part number, the dimensions or a drawing and we confirm the match in writing.

KINGARC|Built to LastStable qualityCustom availableCommitment kept
Seals & Hydraulics
  • Materials stated per reference — NBR, FKM (Viton-type), EPDM, PU and PTFE, never a generic ‘oil resistant’ claim.
  • Built for quarry sites, mine haul roads and long-distance fleet duty, where heat, dust and long service intervals are the normal inputs.
  • Matched by part number, ID / OD / thickness or drawing — a photograph alone cannot size a seal.
  • Cross-referenced for Sinotruk HOWO, HINO, Mercedes-Benz, CAT, Komatsu, Hitachi and Sany positions.
  • Cylinder kits assembled position by position: rod seal, piston seal, buffer, wiper and backup ring.
  • LONG LIFE | HIGH PERFORMANCE | RELIABLE QUALITY — trial from 1 pc per SKU, mixed cartons accepted.
Cross-referenceOEM and aftermarket reference numbers are listed for compatibility identification only. They are not KINGARC OE numbers; fitment is confirmed in writing before quotation.
Sub-categories

Oil seals, O-rings, gaskets and cylinder kits

Every line is matched by part number and machine model, and ships on one set of documents.

Oil Seals — Skeleton, Rotary Shaft and Dust Wipers

Skeleton oil seals in TC, TB, SC and SB profiles for crankshafts, wheel hubs, transmissions, axles and hydraulic motors, supplied in NBR and FKM (Viton-type) and matched to shaft diameter, bore and surface speed. The J-type dust wiper covers oil, water, shaft, bore, rotary, mechanical and dust duties: injection moulded, working with hydraulic oil, emulsion, gas and mild acid or alkali, from –30 °C to +80 °C.

O-Rings — NBR, FKM, EPDM, PU

O-rings resistant to acid, alkali, corrosion and high temperature, with material and size coverage across the full range — NBR (nitrile), FKM (Viton-type) and EPDM as standard, PU where abrasion dominates. Metric and imperial sizes are held to ISO 3601, non-standard sections are made to drawing, and assortments are boxed per workshop requirement.

KINGARC, Built to LastO-ring set in NBR and PU, three sizesStable quality · Custom available · Commitment kept
O-ring set in NBR and PU, three sizes
Single black NBR O-ring, to ISO 3601
Single black NBR O-ring, to ISO 3601
O-ring assortment and shaft seals, as supplied in a hydraulic repair kit
O-ring assortment and shaft seals, as supplied in a hydraulic repair kit
KINGARC, Built to LastO-ring assortment close up — sections and diameters matched per positionStable quality · Custom available · Commitment kept
O-ring assortment close up — sections and diameters matched per position

Gaskets & Engine Gasket Kits

Cylinder head gaskets, valve cover gaskets, oil pan gaskets, manifold gaskets and complete engine gasket sets for overhaul. Cut or moulded to drawing with material and thickness stated per position. The documented line starts with the valve cover gasket set supplied as 22441-2GGB0 / VS50892 for Hyundai engines; truck, bus, generator and machine sets are quoted against the engine model or drawing.

KINGARC, Built to LastEngine valve cover gasket, 22441-2GGB0 / VS50892Stable quality · Custom available · Commitment kept
Engine valve cover gasket, 22441-2GGB0 / VS50892
Complete engine gasket set, every position laid out
Complete engine gasket set, every position laid out

Hydraulic Cylinder Seal Kits

Boom, arm and bucket cylinder seal kits for CAT, Komatsu, Hitachi and Sany excavators, assembled position by position: rod seal, piston seal, buffer seal, wiper and backup ring. HRU composite rod seals serve mining duty and HRVC compact rod seals standard service. Pump and hydraulic motor repair kits are built on the same basis — seals, O-rings and wear parts listed per position, with material stated per position and the working range on the quotation.

HRU composite rod seal for mining duty
HRU composite rod seal for mining duty
HRU rod seal, sealing face detail
HRU rod seal, sealing face detail
HRU rod seal, section detail
HRU rod seal, section detail
HRVC composite rod seal
HRVC composite rod seal
HRVC rod seal, section detail
HRVC rod seal, section detail
Hydraulic motor repair kit: seals, rotor and wear plate
Hydraulic motor repair kit: seals, rotor and wear plate
Specifications

Sizes, ratings, hardness and fitment basis

Thread and reach, filtration rating, friction grade, surface hardness, material and temperature range — each stated with the basis it is measured against. Send one line of it back with the machine model or chassis number and we confirm fitment in writing.

Customization

Private label, custom packing, made to drawing

Your artwork, your reference codes, your packing — confirmed on a sample before the first production run.

01

Private label

Your brand on the carton, the box and the label, with artwork held on file for repeat runs.

02

Custom packing

Poly bag, blister, shrink, skin pack or bulk carton — stated per reference before the first run.

03

Made to drawing

Send the drawing or the sample: dimensions, material, hardness and finish are quoted against it.

Documents

Test reports & batch records

What we can put on paper, and when you get it. A blank sample sheet is available before the first order.

On paper

Batch record

Inspection values for the batch that ships — issued with every order.

On paper

Test reports

Hardness, sealing, tensile and salt-spray where the reference calls for them.

On paper

Packing list and invoice

Per carton, matched to the reference list you sent.

On paper

Loading photographs

Pallet layout and closed container with the seal number before departure.

Photos

Parts as they leave the floor

KINGARC, Built to LastO-ring set in NBR and PU, three sizesStable quality · Custom available · Commitment kept
O-ring set in NBR and PU, three sizes
HRU composite rod seal for mining duty
HRU composite rod seal for mining duty
KINGARC, Built to LastEngine valve cover gasket setStable quality · Custom available · Commitment kept
Engine valve cover gasket set
Complete engine gasket set, every position laid out
Complete engine gasket set, every position laid out
Before you order

What we need from you, and what we send back

One message is enough to start. Fitment, supply status, MOQ and lead time are confirmed in writing before the order is placed, so a wrong line never reaches your carton.

FitmentDimensions, hardness and ratings are reference points, not a fitment promise. Send the old part number, machine model and serial range, and the drawing or sample if custom. We confirm the matching reference, supply status, MOQ and lead time in writing before the order is placed.
Questions

Asked before the first order

How do I choose between NBR, FKM, EPDM and PU?
NBR for standard oil service, FKM (Viton-type) where temperature is high or the fluid aggressive, EPDM for water, brake fluid and alkali duty, PU where abrasion dominates. Send the duty and we state the recommendation per reference.
Can you match a seal from a sample or dimensions?
Yes. Send the old seal or its ID / OD / thickness and we confirm the dimensions and material before quotation. A photograph alone is not enough to size a seal.
Can a cylinder seal kit be built to my machine model?
Yes. Send the cylinder number or the machine model and we assemble the kit position by position — rod seal, piston seal, buffer, wiper and backup ring — stating material per position before you order.
What temperature range do the seals cover?
Stated per material on the quotation. The standard J-type dust wiper and NBR oil seal family covers –30 °C to +80 °C; FKM and PTFE positions are quoted for higher duty.
Do you publish hardness and dimensional records?
Dimensional inspection is recorded per shipment and available on request, alongside hardness reports for the mating metal parts.
Can I mix oil seals, O-rings, gaskets and kits in one carton?
Yes. Trial quantity starts from 1 pc per SKU and a mixed carton is the usual first order.
Keep browsing

Other product pages

Send this inquiry

Send the reference list. We quote line by line.

One list, one written reply per reference: availability, MOQ, lead time and packing — checked before anything is quoted.

Reference: Seals & Hydraulics
Added to your message automatically, so nothing has to be retyped.

Nothing is sent until WhatsApp or your mail client opens — no account, no sign-up. The more complete the OE number and machine model, the faster we can confirm fitment and quote.

Before you send

What to put in the inquiry

  • OE number, or the number stamped on the old part
  • Machine brand, model and serial range
  • Quantity per item — trial carton or programme volume
  • Destination port and Incoterm (FOB / CIF / DAP)

Reply within 24 hours on working days. Fitment is confirmed in writing before any quotation is issued, so a wrong line never reaches your order.

KINGARC777@outlook.com · WhatsApp +86 150 1148 9317

Documents

Batch record with the shipment

Hardness, sealing, tensile and salt-spray reports where the reference calls for them, plus packing list and invoice. Ask for a blank sample sheet before the first order.

Talk to a person

Email or WhatsApp, same working day

Send the OE number, the drawing or the machine model and serial range — fitment is confirmed in writing, then the quotation follows line by line.

Send the reference list. We quote line by line.

One inquiry is enough. We read the list, check the references and reply with availability, MOQ and lead time.

KINGARC, Built to Last.

Get a Quote WhatsApp