In the UAE and wider GCC aftermarket, a quotation is useful only when every supplier is pricing the same technical requirement under comparable commercial conditions. A low unit price can quickly lose its advantage if the reference is wrong, the minimum order quantity is impractical, the lead time is unclear, or the delivery term excludes costs that another supplier has included.
A disciplined request for quotation (RFQ) turns a parts enquiry into a controlled purchasing process. It helps distributors, fleet operators, workshops and procurement teams compare offers fairly while reducing fitment errors and commercial surprises. The workflow below follows a practical sequence: OE requirements → quotation → samples → technical and QC evaluation → competitor price comparison → initial order after approval.
Why auto parts quotations are difficult to compare
Automotive parts are not commodities simply because two offers use a similar description. “Brake pad,” “water pump” or “engine bearing” is not enough to define the required item. Differences may exist in dimensions, material specification, vehicle application, engine variant, production date, superseded OE reference, packaging and certification.
Commercial terms can also hide major differences. One quotation may be ex-works, another may include delivery to a named port, and a third may omit packing or documentation charges. Buyers therefore need a standard data set before comparing price.
Step 1: Build a verified identification pack
Start with the OE reference
Record the full OE number exactly as shown in the vehicle manufacturer’s catalogue, the removed part, or a reliable service record. Preserve spaces, suffixes and revision letters during the first review because a small difference can indicate another specification or a superseded part.
An OE reference should be treated as an identification anchor, not as automatic proof that every cross-reference offered by a supplier is suitable. Ask the supplier to state clearly whether the quoted number is its own part number, an OE reference, or a cross-reference.
Add engine code and chassis/VIN data
Model name and model year alone may not separate engine, axle, brake or transmission variants. Add the engine code and the complete chassis or VIN whenever available. The NHTSA VIN decoder illustrates how a VIN can identify vehicle information reported by the manufacturer. For procurement, however, decoded vehicle data should still be checked against the relevant manufacturer catalogue or verified supplier application data.
For mixed fleets, create one vehicle record per chassis and link every approved part number to that record. This avoids reusing an old cross-reference on a superficially similar vehicle.
Include evidence that resolves ambiguity
- Clear photos of the removed part, label and connector or mounting points
- Critical dimensions where the part family has variants
- Vehicle make, model, model year and market specification
- Engine code, transmission or axle code when relevant
- OE number and any known supersession
- Required quantity and intended application
Mask personal information before sharing registration documents. Send only the technical data needed for identification.
Step 2: Make every RFQ line item unambiguous
Use one row per part and assign an internal line number. Each row should contain the requested OE reference, description, vehicle or engine application, annual or initial quantity, destination and any required brand or quality tier. If alternatives are acceptable, ask suppliers to quote them as separate options rather than silently substituting one product.
A useful RFQ distinguishes three positions:
- Required reference: the OE or approved reference supplied by the buyer
- Supplier reference: the manufacturer or supplier part number being offered
- Cross-reference basis: the catalogue, drawing, application data or sample used to establish the match
This structure makes later technical review faster and creates an audit trail if a mismatch appears during sampling.
Step 3: Request a complete commercial quotation
Ask every supplier to return the same commercial fields. At minimum, request:
- Currency and unit price
- MOQ per item and any mixed-order MOQ
- Pack quantity and carton quantity
- Production or dispatch lead time
- Quotation validity
- Payment terms, stated for review rather than assumed acceptance
- Country of origin and manufacturer name where disclosure is permitted
- Warranty or claims procedure
- Sample availability, sample cost and sample lead time
- Incoterm, named place or port, and rule version
- Estimated gross weight, volume and packing method
The International Chamber of Commerce explains that Incoterms® rules clarify delivery tasks, costs and risks between seller and buyer. A quotation should therefore say, for example, “FCA [named place], Incoterms® 2020,” rather than using a three-letter term without a location or version.
Do not interpret a quoted payment term, sample offer or delivery condition as accepted. These items remain subject to commercial review and approval.
Step 4: Complete technical verification before ranking price
Separate technical acceptance from commercial ranking. First, confirm that each offer answers the identification requirement. A quotation that cannot demonstrate a credible cross-reference should be marked “technical clarification required,” even if its price is attractive.
Request supporting data appropriate to the product:
- Application list and cross-reference table
- Drawing or critical dimensions
- Material or performance specification
- Batch or lot traceability method
- Quality-system certificates relevant to the manufacturer
- Test reports where the part category or buyer specification requires them
- Packaging label sample and barcode information
Certificates should be checked for issuer, scope, site, validity date and relationship to the actual manufacturing facility. A certificate logo in a brochure is not enough.
Step 5: Define the sample and QC gate
Samples should have a written evaluation plan. Without one, a sample can look acceptable while important characteristics remain unchecked. The plan should identify what will be inspected, who approves it and how the result is recorded.
Typical incoming checks
- Supplier part number, OE cross-reference and label accuracy
- Quantity, packaging and visible transport damage
- Critical dimensions and mounting points
- Material, finish and workmanship against the agreed specification
- Connector, thread, seal or friction-surface details where applicable
- Batch code and traceability
Functional or vehicle testing must be performed by qualified personnel using the applicable service information and safety procedures. A visual inspection alone does not establish compatibility or performance.
Control changes after sample approval
State that changes to material, design, manufacturing location, sub-supplier, process or packaging require disclosure and review. The initial sample should represent the production configuration; otherwise the buyer may approve something different from the delivered order.
Step 6: Compare landed cost, not only unit price
Create a normalized comparison sheet. Convert offers to one currency and one delivery basis, then add the costs that are outside each quotation. Depending on the transaction, the comparison may include freight, insurance, customs-related charges, bank charges, inspection, repacking and the cost of carrying excess MOQ.
Also calculate operational factors:
- Value tied up by MOQ and pack size
- Expected replenishment time and stockout exposure
- Sample and testing cost
- Claim handling and replacement lead time
- Documentation completeness
- Supplier response quality and traceability
The objective is not to assign an artificial score to every detail. It is to make trade-offs visible before a commercial decision is made.
Step 7: Use an approval gate before the initial order
A clear approval record should show that the OE requirement was confirmed, the quotation was reviewed, the sample passed the defined technical and QC checks, and competitor pricing was compared on a consistent basis. Only then should an initial order be considered, subject to authorised approval.
Keep the first order controlled in size and trace it by supplier, part number, batch and vehicle application. Monitor incoming quality, installation feedback, claims and delivery performance. The result becomes evidence for any later decision about repeat volume; it is not an automatic long-term commitment.
A practical RFQ template for GCC buyers
Your spreadsheet or procurement system can use the following columns:
- Internal line number
- OE number required
- Vehicle, engine code and chassis/VIN reference
- Description and critical specification
- Required quantity
- Supplier part number and brand
- Cross-reference evidence
- Unit price, currency and MOQ
- Pack quantity
- Lead time and quotation validity
- Incoterm, named place and version
- Payment terms for review
- Sample availability and timing
- Origin, manufacturer and traceability
- Technical status, QC result and approval owner
Common red flags in supplier quotations
- A generic description with no supplier part number
- Price offered before the supplier reviews OE, engine and chassis data
- An Incoterm without a named place
- No distinction between production lead time and transport time
- Certificates that do not identify the manufacturing site or valid scope
- Substitutions made without written approval
- Samples that cannot be linked to a production batch
- Pressure to confirm volume before technical evaluation
Frequently asked questions
Is an OE number enough to approve an aftermarket part?
No. It is a strong starting reference, but the supplier’s cross-reference, vehicle application, engine code, chassis/VIN and relevant technical data should be reviewed before compatibility is accepted.
Which quotation fields are essential for a fair comparison?
At minimum: supplier part number, technical reference, unit price, currency, MOQ, pack quantity, lead time, validity, payment terms, sample terms, origin, and the Incoterm with named place and version.
Should the lowest-priced supplier receive the order?
Not automatically. Technical conformity, QC evidence, landed cost, lead time, traceability and claims support can materially change the real commercial result.
When should an initial order be placed?
Only after the OE requirement and offered reference are checked, the quotation is complete, samples pass the defined technical/QC evaluation, competitor prices are normalized, and the authorised buyer approves the transaction.
What information should be sent for a fitment enquiry?
Send the OE number, engine code, full chassis/VIN, vehicle details, required quantity and clear photos or measurements when relevant. Astroline can then review the request without making assumptions from model name alone.
Build a more reliable parts-sourcing workflow
Explore Astroline’s Product Portfolio to review the supported product categories. For a specific enquiry, contact Astroline with the OE number, engine code, chassis/VIN and required quantity. Availability, commercial terms and compatibility are confirmed only after review.
Featured photo: Adrian Sulyok on Unsplash.