Diesel injection repair workshop with injectors and pumps on the workbench
Industry Solutions · Geruis Diesel

Everything Your Diesel Injection Testing & Repair Needs, Matched to Your Business

Test benches plus multi-brand compatible injectors, pumps, fuel rails, nozzles, valves and plungers, compatible with Bosch, Denso, Delphi, Caterpillar, Cummins and Siemens. Send us your engine and OE number. We confirm fitment before we quote.

  • 3–30 Days
    Shipping, tracked
  • 12 Months
    Warranty from delivery
  • 24/7
    Technical support
Solution 01 · Injection Repair Shops

Test Bench + Common Parts, Supported After Delivery

Common rail test bench installed in a repair workshop
01 · Pain

Big Spend, Little Support

  • A test bench is a major cash commitment for a small shop.
  • Worry about installation, calibration and operator training.
  • Cross-border after-sales is slow when time zones differ.
02 · Setup

Recommended Setup

  • Test bench to match your work: injection pump, common rail, EUI-EUP or HEUI.
  • Starter stock of injectors, nozzles, valves and repair kits.
  • Tool kits for disassembly and adjustment.
03 · Commitment

Our Commitment

  • Remote setup and commissioning guidance by video call.
  • Payment terms negotiated per contract. SWIFT or a secure payment system.
  • 12-month warranty with repair or replacement.
Solution 02 · Remanufacturers & Rebuilders

Bulk Precision Parts With Quality Papers in the Box

01 · Pain

Tolerance Risk

  • A small tolerance error causes abnormal delivery and failed bench results.
  • Hard to judge a new supplier before ordering in volume.
  • Downstream customers ask for quality proof.
02 · Setup

Recommended Setup

  • Pump plungers and injection pump elements.
  • Injector valves and control valve kits, including Denso-compatible valve plates.
  • Ball seats, nozzles and injector repair kits.
03 · Commitment

Our Commitment

  • Quality certificates available on request and shipped with the goods.
  • Samples before bulk orders.
  • Variant check before quoting, for example valve plate matching on Denso 095000 series.
Precision pump plungers laid out for inspection
Solution 03 · Wholesalers & Distributors

Send a List of OE Numbers, Get One Quote

Packed cartons of diesel parts ready for shipment
01 · Pain

Variants & Delays

  • One OE number can match several variants, for example 0445214270.
  • Wrong picks lead to returns and unhappy customers.
  • Waiting weeks leaves shelves empty.
02 · Setup

Recommended Setup

  • Send your restock list by OE number.
  • Mix fuel rails, feed pumps, nozzles, injectors and pumps in one order.
  • Line-by-line quote with fitment notes.
03 · Commitment

Our Commitment

  • Shipping in 3–30 days, depending on destination and shipping method.
  • Tracking number after dispatch, also available through Track Your Order.
  • A sales contract for every order.
Solution 04 · Trucks & Commercial Vehicles

Keep Toyota, Isuzu, IVECO and Scania Fleets Moving

01 · Pain

Downtime Costs

  • Every day a truck waits for parts is lost revenue.
  • Mixed fleets need parts across several brands.
  • Fleet workshops need the right part the first time.
02 · Setup

Recommended Setup

  • Common rail injectors and fuel rails.
  • High-pressure pumps and feed pumps.
  • Stop solenoids and fuel cut-off valves, including 24V applications.
03 · Commitment

Our Commitment

  • We confirm fitment from your engine model and OE number.
  • Tracked shipping in 3–30 days.
  • Support by WhatsApp, email or video call.

Parts for Commercial Vehicles

Solution 05 · Construction Machinery

Replacement Fuel System Parts for Komatsu Excavators & Loaders

01 · Pain

Idle Machines

  • A stopped excavator holds up the whole site.
  • OE parts for heavy equipment are expensive.
  • HP0 pump variants are easy to confuse.
02 · Setup

Recommended Setup

  • Unit pumps (monoblock) for excavators and loaders.
  • HP0 pump plungers for engines such as Komatsu PC400.
  • HP0 PCV valves for Komatsu SA6D140E / SAA6D125E.
03 · Commitment

Our Commitment

  • Selection guidance for your engine model before you order.
  • Samples and quality certificates on request.
  • 12-month warranty from the delivery date.
Tracked excavator on a quarry site
Solution 06 · Pickups & SUVs

Injectors & Pumps for Hilux, Land Cruiser and D-Max

Open engine bay of a diesel pickup truck
01 · Pain

Many Engine Codes

  • 1KD, 2KD, 1VD and 4JJ1 each need specific parts.
  • Euro-level differences change the injector you need.
  • Retail customers want fast, affordable repairs.
02 · Setup

Recommended Setup

  • Common rail injectors for Hilux, Land Cruiser 200 and D-Max.
  • Denso-compatible high-pressure pumps for 1KD / 2KD and 4JJ1.
  • Nozzles, control valves and injector repair kits.
03 · Commitment

Our Commitment

  • Match by engine code, vehicle and OE number.
  • Warranty terms stated on each listing.
  • Fast replies on WhatsApp.
Compatible vs. OE

When a Compatible Part Makes Sense

Our parts are compatible replacements for Bosch, Denso, Delphi, Caterpillar, Cummins and Siemens systems. We are not an authorized distributor for those brands. Here is how buyers usually compare the two options.

Consideration Compatible Parts OE Parts
Purchase cost Usually lower. This helps margins for rebuilders and wholesalers. Usually higher, especially for precision matched parts.
Reliability check Order samples first and request quality certificates. Then verify the parts on your test bench. Backed by the brand's own documentation.
Fitment risk We check variants against your engine and OE number before quoting. Matched through the brand's own catalog.
After-sales 12-month repair or replacement from delivery, unless a listing states otherwise. Per the brand's own warranty policy.
Best fit Volume rebuilds, price-sensitive repairs, and aftermarket restocking. Cases where the end customer specifically requires OE-branded parts.

Product condition, such as new or remanufactured, is stated on each listing. Confirm it with our team before you order.

Our Commitments

What Every Order Includes

3–30 Days

Shipping

  • Depends on destination and shipping method
  • Tracking number after dispatch
  • Order status through Track Your Order
12 Months

Warranty

  • Counted from the delivery date
  • Repair or replacement
  • Some listings state their own terms
24/7

Technical Support

  • WhatsApp and email
  • Video calls for setup and troubleshooting
  • Selection advice before you buy
Injector being tested on a diesel test bench Diesel parts being packed for export Technician on a video call giving remote support Cartons loaded for international dispatch
Get Your Setup Quoted

Send Your Engine Model and OE Numbers

Our team checks compatibility, confirms the details with you, and quotes. Quality certificates and samples are available on request. Payment terms are agreed in the contract.

  1. 01Share your engine brand, vehicle model and OE numbers.
  2. 02We recommend parts and confirm the details.
  3. 03Certificates and samples as needed, then the contract.
  4. 04Payment by SWIFT or a secure payment system, then tracked shipping.
WhatsApp
008619074265236
Phone
008619074265236
Email
sales@grsdiesel.com
Separate multiple numbers with commas. Tell us if you need a test bench.