Insights & Guides

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Technical guides, industry trends, and maintenance tips from the KEHO engineering team.

32 articles

Latest Articles

Auto Parts Payment Terms: T/T, L/C and Deposit Structures

Auto Parts Payment Terms: T/T, L/C and Deposit Structures

How T/T, letters of credit and deposit structures move risk between auto parts buyer and seller, and how to tie payment tranches to inspection.

Misfire Diagnostic Codes: A Parts Coverage Map for Importers and Distributors

Misfire Diagnostic Codes: A Parts Coverage Map for Importers and Distributors

Map P0300-P0312 and P0351 misfire codes to the parts importers actually stock. Five failure clusters, coverage weighting, and supplier checks.

Wheel offset and backspacing measurement diagram for wheel importers and distributors

Wheel Offset and Backspacing Conversion: PCD and Fitment Risk for Importers

Convert wheel offset to backspacing, read ET correctly, and catch PCD errors before a container ships. A fitment risk map for auto parts importers.

Auto Parts Cross Reference: Bosch, Denso and Delphi Numbers Explained

Auto Parts Cross Reference: Bosch, Denso and Delphi Numbers Explained

How OEM, Bosch, Denso and Delphi part numbers relate, why supersession breaks lookups, and a verification method that holds up on bulk orders.

Canister Purge Valve Buying Guide for Importers | KEHO

Canister Purge Valve Buying Guide: What Importers and Distributors Need to Know

Compare stuck-open vs stuck-closed purge valve failures, OEM number matching, and supplier checks for bulk import orders. EVAP fitment and MOQ guidance.

Carbon Fiber Steering Wheel Guide for Importers | KEHO

Carbon Fiber Steering Wheel Guide for Importers | KEHO

Compare carbon fiber, Nappa leather, and flat-bottom steering wheels. OEM fitment, airbag compatibility, and supplier checks for bulk import orders.

Crankshaft and camshaft position sensor locations on the engine block

Crankshaft Position Sensor & Camshaft Sensor Buying Guide for Importers and Distributors

Crankshaft vs camshaft sensors explained: OEM number matching, symptom mapping, and quality checks for importers stocking CKP and CMP.

Mixed container shipping consolidating multiple auto parts categories into one load

Low MOQ Auto Parts: A Mixed-Container Shipping Guide for Importers and Distributors

Low MOQ auto parts and mixed-container shipping explained. Cut import risk with small trial orders and consolidated freight for importers.

Factory audit of a Chinese auto parts supplier for importer verification

How to Vet a Chinese Auto Parts Supplier: A Checklist for Importers and Distributors

Verify a Chinese auto parts supplier before you pay. Business license checks, IATF 16949 certification, factory audits, and red flags for importers.

TPMS Sensor Buying Guide for Importers & Distributors | KEHO

TPMS Sensor Buying Guide: What Importers and Distributors Need to Know

Compare direct vs indirect TPMS sensors, OEM number matching, and supplier checks for bulk import orders. Programming, warranty, and MOQ guidance.

OEM part number stamped on an auto part for importer fitment verification

How to Match Auto Parts by OEM Number: A Guide for Importers and Distributors

Learn how to verify auto part fitment with OEM numbers. Fitment data, cross-reference, and 4-dimension checks for importers and distributors.

Upstream and downstream oxygen sensor positions in the exhaust system

Oxygen Sensor Buying Guide: What Importers and Distributors Need to Know

Upstream vs downstream oxygen sensors, OEM number matching, and quality checks for importers sourcing O2 sensors in bulk.

Fuel Injector Buying Guide: What Importers and Distributors Need to Know

Fuel Injector Buying Guide: What Importers and Distributors Need to Know

New vs remanufactured fuel injectors, OEM number matching for 117+ SKUs, flow matching explained, and supplier evaluation for bulk import orders.

Ignition Coil Buying Guide: What Importers and Distributors Need to Know

Ignition Coil Buying Guide: What Importers and Distributors Need to Know

COP vs coil pack vs distributor coils. OEM number matching, failure patterns, supplier checklist, and cross-purchase logic with spark plugs.

Alloy Wheel Buying Guide for Importers | KEHO

Alloy Wheel Buying Guide: What Importers and Distributors Need to Know

Compare cast aluminum wheel sizes, offset, and finishes for bulk import orders. Diameter, J-value, ET, PCD, and supplier checks explained.

How to Compare Auto Parts Quotations: A Line-by-Line Method for Importers

How to Compare Auto Parts Quotations: A Line-by-Line Method for Importers

Compare auto parts quotations line by line: Incoterms basis, packaging and label cost, MOQ price breaks, payment terms and warranty exclusions

Spark Plug Buying Guide: What Importers and Distributors Need to Know

Spark Plug Buying Guide: What Importers and Distributors Need to Know

Compare iridium, platinum, and copper spark plugs. OEM number matching, heat range selection, and supplier evaluation for bulk import orders.

Forged Wheel Buying Guide for Importers | KEHO

Forged Wheel Buying Guide: What Importers and Distributors Need to Know

Compare monoblock, two-piece, and three-piece forged wheel construction. Style, finish, fitment fields, and supplier checks for importers.

EVAP Leak Diagnosis & Fault Codes Guide | KEHO

EVAP Leak Diagnosis & Fault Codes: A Guide for Importers and Distributors

Map EVAP fault codes P0441, P0442, P0455, and P0456 to the right replacement part. Smoke test basics and supplier checks for importers.

Steering Wheel Fitment & Installation Guide | KEHO

Steering Wheel Fitment & Installation Guide: What Importers and Distributors Need to Know

Five fitment fields that decide whether a steering wheel mounts, airbag safety, multifunction buttons, and the install sequence for importers.

Auto Parts Compliance Requirements: E-Mark, DOT, REACH and RoHS

Auto Parts Compliance Requirements: E-Mark, DOT, REACH and RoHS

E-Mark, DOT, REACH and RoHS explained for auto parts importers: who owns compliance, what to request from suppliers, and how to verify the documents.

Multi-Category Parts Program Guide for Importers | KEHO

How to Build a Multi-Category Parts Program: A Guide for Importers and Distributors

Move from single-category to multi-category auto parts sourcing. Category pairing, mixed-container freight, and one-stop supplier tradeoffs.

Auto Parts Warranty, Claims and Returns | KEHO

Auto Parts Warranty, Claims and Returns: Terms Importers Should Agree Up Front

Agree auto parts warranty terms before you order: coverage, exclusions, claim timelines, replacement or return, freight and batch traceability.

Oxygen Sensor Fault Codes: P0130-P0167 and the P0420 Misdiagnosis

Oxygen Sensor Fault Codes: P0130-P0167 and the P0420 Misdiagnosis

Read P0130-P0166 and P0420 correctly: why a healthy catalytic converter gets blamed, and how to stock oxygen sensors by code family.

P0335, P0340, P0016: Position Code Parts Map | KEHO

Crankshaft and Camshaft Position Codes (P0335, P0340, P0016): A Parts Coverage Map for Importers

Map P0335, P0340 and P0016 to the parts importers stock: what each code points at, which parts to carry, and a sensor sourcing checklist.

Sample Approval Before Bulk Order | KEHO

Sample Approval Before Bulk Order: What Auto Parts Importers Should Validate

Validate an auto parts sample before bulk order: OEM and fitment fields, connector pin-outs, key dimensions, finish, packaging and inspection evidence.

Auto Parts Incoming Inspection: AQL, Sampling and Defect Classes

Auto Parts Incoming Inspection: AQL, Sampling and Defect Classes

Set an auto parts incoming inspection plan: lot size, sample size and acceptance number, critical, major and minor defects, and claim-ready records.

Auto Parts Export Packaging & Labeling Checklist | KEHO

Auto Parts Export Packaging, Labeling and Documentation: A Checklist for Importers

Auto parts export packaging, labeling and documentation checklist for importers: unit protection, shipping marks, batch traceability, clearance documents.

ABS Wheel Speed Sensor Buying Guide for Importers | KEHO

ABS Wheel Speed Sensor Buying Guide: What Importers and Distributors Need to Know

Compare active vs passive ABS wheel speed sensors, OEM number matching, and supplier checks for bulk import orders. Fitment, wiring, and MOQ guidance.

Auto Parts Lead Time: Stock vs Production Orders | KEHO

Stock Orders vs Production Orders: Auto Parts Lead Time Planning for Importers

How importers plan auto parts lead time across stock and production orders: the lead-time chain, reorder points, safety stock and peak-season timing.

Incoterms for Auto Parts: FOB, CIF and DDP Risk Transfer

Incoterms for Auto Parts: FOB, CIF and DDP Risk Transfer

"How EXW, FOB, CIF and DDP split cost, risk and responsibility on auto parts shipments, and where insurance, port charges and damage claims land.

Auto Parts HS Code Classification: A Practical Guide for Importers

Auto Parts HS Code Classification: A Practical Guide for Importers

A practical method for auto parts HS classification: four decision levers, the documents customs asks for, and how to handle a dispute. No code guessing.

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