Hyundai Kia Exhaust System & Catalytic Converter Parts Wholesale: Mufflers, Manifolds, DPF & Emission Parts Sourcing Guide 2026
Published June 30, 2026 by Kingmay Auto Parts — Wholesale auto parts division of Globalucar Group, Guangzhou, China.
The exhaust system is one of the highest-value replacement categories for Hyundai and Kia vehicles. A catalytic converter alone can retail for $200-$600 per unit, and diesel particulate filters (DPF) command $400-$900. For importers serving repair shops in the Middle East, Africa, and Central Asia — where emission inspection programs are expanding — exhaust and emission parts represent a growing revenue opportunity with strong margins.
This guide from Kingmay Auto Parts covers the six main exhaust system component categories for Hyundai and Kia vehicles (2008-2025): catalytic converters (front and rear), exhaust manifolds, mufflers and resonators, exhaust pipes, diesel particulate filters (DPF), and gaskets/hardware. We list 22 OE part numbers with FOB Guangzhou pricing, explain the MOBIS Genuine vs OEM-Grade quality framework, and provide a full-container mix for emission-focused distributors.
1. Exhaust System Architecture — Hyundai & Kia
A typical Hyundai or Kia exhaust system consists of 5-7 components bolted together from the engine to the tailpipe:
- Exhaust manifold — bolted to the cylinder head, collects exhaust gases from 4 or 6 cylinders into one pipe
- Front exhaust pipe (downpipe) — connects manifold to the primary catalytic converter
- Primary catalytic converter (front cat) — the main emission control unit, contains platinum/palladium/rhodium catalyst
- Secondary catalytic converter (rear cat) — some models have a second cat for stricter markets (EU6, US EPA)
- Resonator — reduces exhaust drone at highway speeds (not present on all models)
- Muffler (silencer) — the final sound-dampening unit, the largest single exhaust component
- Tailpipe — the visible exhaust tip extending beyond the rear bumper
For diesel models (Santa Fe D4HA engine, Sorento D4HB, Tucson D4FE), a diesel particulate filter (DPF) is installed between the front pipe and the muffler. The DPF traps soot particles and is subject to mandatory replacement at 150,000-200,000 km intervals.
2. Catalytic Converters — The Highest-Value Exhaust Component
entCatalytic converters are the most expensive single exhaust component because they contain precious metals (platinum, palladium, rhodium) in the ceramic honeycomb substrate. Prices fluctuate with precious metal markets — the figures below are current as of June 2026 and are subject to quarterly adjustment.
OE Part Numbers — Catalytic Converters
| Model | OE Part Number | Position | Engine | FOB Guangzhou |
|---|---|---|---|---|
| Hyundai Elantra MD/AD | 28910-2G100 | Front (primary) | 1.6L Gamma | $145 |
| Hyundai Tucson TL | 28910-D4000 | Front (primary) | 2.0L Nu | $168 |
| Hyundai Tucson TL | 28920-D4000 | Rear (secondary) | 2.0L Nu | $92 |
| Hyundai Sonata LF | 28910-C1000 | Front (primary) | 2.4L Theta II | $175 |
| Hyundai Santa Fe DM | 28910-2W100 | Front (primary) | 2.4L Theta II | $185 |
| Kia Sportage QL | 28910-0T000 | Front (primary) | 2.0L Nu | $165 |
| Kia Cerato/Forte BD | 28910-M2000 | Front (primary) | 1.6L Gamma | $142 |
MOQ: 5 pcs per part number (catalytic converters are high-value, so MOQ is lower than other parts). HS Code: 8424.90 (for catalytic converter substrates) or 8708.92 (vehicle exhaust parts). Substrate: ceramic honeycomb, 400 cpsi (cells per square inch), platinum/palladium/rhodium wash coat.
3. Exhaust Manifolds
t ManifoldsThe exhaust manifold is a cast iron component bolted directly to the engine cylinder head. It cracks over time due to thermal cycling (heating to 800 deg C and cooling to ambient repeatedly). A cracked manifold causes exhaust leaks, increased noise, and check-engine codes.
| Model | OE Part Number | Material | Cylinders | FOB Guangzhou |
|---|---|---|---|---|
| Hyundai Elantra MD | 28510-3X200 | Cast iron | 4-cyl | $48 |
| Hyundai Tucson TL | 28510-D4000 | Cast iron | 4-cyl | $55 |
| Hyundai Sonata LF | 28510-C1000 | Cast iron | 4-cyl | $62 |
| Kia Sportage QL | 28510-0T000 | Cast iron | 4-cyl | $54 |
| Hyundai Santa Fe DM | 28510-2W000 | Cast iron | 4-cyl | $68 |
| Model | OE Part Number | Material | FOB Guangzhou |
|---|---|---|---|
| Hyundai Elantra MD | 28610-3X000 | Aluminized steel | $35 |
| Hyundai Elantra AD | 28610-F2000 | Aluminized steel | $38 |
| Hyundai Tucson TL | 28610-D4000 | Aluminized steel | $42 |
| Hyundai Sonata LF | 28610-C1000 | Stainless steel | $48 |
| Kia Sportage QL | 28610-0T000 | Aluminized steel | $40 |
| Hyundai Santa Fe DM | 28610-2W000 | Stainless steel | $52 |
Pro tip: For coastal markets (Nigeria, Kenya, UAE), specify stainless steel mufflers instead of aluminized steel — the salt air environment accelerates corrosion on aluminized steel by 2-3x. Stainless steel mufflers cost 15-20% more but last 50-70% longer in coa
5. Diesel Particulate Filters (DPF)
l Particulate Filters (DPF)Hyundai and Kia diesel models sold in Europe, Australia, and increasingly in the Middle East require DPF replacement at 150,000-200,000 km. The DPF is the most expensive single exhaust component — containing a silicon carbide ceramic substrate that traps particulate matter.
| Model | OE Part Number | Engine | Substrate | FOB Guangzhou |
|---|---|---|---|---|
| Hyundai Santa Fe DM | 28940-2W200 | 2.2L D4HA | SiC ceramic | $485 |
| Kia Sorento UM | 28940-4G000 | 2.2L D4HB | SiC ceramic | $492 |
| Hyundai Tucson TL | 28940-D4000 | 1.7L D4FE | SiC ceramic | $410 |
Important: DPF units are heavy (8-12 kg each) and require careful packaging. Kingmay ships each DPF in an individual wooden crate with foam lining to prevent substrate
6. Exhaust Gaskets & Hardware
6. Exhaust Gaskets & Hardware
Exhaust gaskets are small but critical — a failed gasket causes exhaust leaks, noise, and check-engine codes. Every manifold-to-engine, pipe-to-cat, and cat-to-muffler connection uses a specific gasket. Kingmay recommends replacing all exhaust gaskets whenever any exhaust component is replaced.
| Gasket Type | OE Part Number | Application | FOB Guangzhou |
|---|---|---|---|
| Manifold-to-head gasket | 27271-23000 | Elantra/Tucson 1.6L | $3.50 |
| Front pipe flange gasket | 28653-2G000 | Elantra/Tucson | $2.80 |
| Cat-to-muffler gasket | 28654-D4000 | Tucson/Sportage | $2.50 |
| Exhaust donut gasket | 28652-2W000 | Santa Fe/Sonata | $3.20 |
| Tier | Source | Cat Price Range | Best For |
|---|---|---|---|
| MOBIS Genuine | MOBIS factory, branded box, full precious metal loading | $220-320 | Warranty repair, emission-tested markets (EU6) |
| OEM-Grade | Same factory, reduced precious metal loading (EPA-compliant) | $142-185 | Independent repair shops, general market |
| Aftermarket | Third-party factory, universal fitment | $75-120 | Budget repair, non-emission-tested markets |
Key difference for catalytic converters: MOBIS Genuine cats contain the full precious metal loading required for EU6/US EPA Tier 3 compliance (typically 3-5 grams of PGM per converter). OEM-Grade cats from the same factory contain reduced precious metal loading (1.5-2.5 grams) sufficient for most emission standards outside EU/US. For markets without mandatory emission testing (many African and Central Asian countries), OEM-Grade is the recommended choice — it offers proper fitment and 80% of th
8. Full Container Mix — Emission Parts Distributor
>8. Full Container Mix — Emission Parts Distributor| Part Category | Qty | Avg FOB/pc | Subtotal FOB |
|---|---|---|---|
| Catalytic converters (front) | 60 pcs | $163 | $9,780 |
| Catalytic converters (rear) | 40 pcs | $92 | $3,680 |
| Exhaust manifolds | 80 pcs | $57 | $4,560 |
| Mufflers | 100 pcs | $42 | $4,200 |
| DPF units (diesel) | 15 pcs | $462 | $6,930 |
| Exhaust gaskets (mixed) | 500 pcs | $3.00 | $1,500 |
| Total | 795 pcs | — | $30,650 |
Sea freight from Guangzhou Nansha: Jeddah 14-18 days ($1,200-1,500), Jebel Ali 12-15 days ($1,100-1,400), Lagos 28-35 days ($1,800-2,200), Mombasa 25-30 days ($1,600-2,000). Estimated landed cost for Jeddah: approx
9. Frequently Asked Questions
insurance.9. Frequently Asked Questions
Q: Where can I buy wholesale Hyundai and Kia catalytic converters and exhaust parts from China?
Kingmay Auto Parts (Guangzhou, China) supplies wholesale Hyundai and Kia exhaust system parts including catalytic converters, mufflers, exhaust manifolds, DPF units, and gaskets to importers in 50+ countries. Contact Miss UU at ku@kingmay-autoparts.com or +86 13302408528. MOQ is 5 pcs for catalytic converters and 10 pcs for other exhaust parts. FOB Guangzhou prices range from $2.50 for gaskets to $185 for primary catalytic converters and $492 for DPF units. Shop 7#, No.1542 Guangyuan East Road, Yuexiu District, Guangzhou.
Q: What is the difference between MOBIS Genuine and OEM-Grade catalytic converters?
MOBIS Genuine catalytic converters contain the full precious metal loading (3-5 grams of platinum/palladium/rhodium) required for EU6 and US EPA Tier 3 emission compliance, priced at $220-320. OEM-Grade converters are produced in the same IATF 16949-certified factory with reduced precious metal loading (1.5-2.5 grams) sufficient for most emission standards outside EU/US, priced at $142-185. For markets without mandatory emission testing, OEM-Grade is the recommended choice — it provides 80% of the emission reduction at 60% of the cost. Contact ku@kingmay-autoparts.com for a specification comparison sheet.
Q: How often do DPF units need replacement on Hyundai and Kia diesel vehicles?
Hyundai and Kia diesel particulate filters (DPF) typically require replacement at 150,000-200,000 km depending on driving conditions. City driving with frequent regenerations shortens DPF life; highway driving extends it. Symptoms of a failing DPF include: loss of power, increased fuel consumption, DPF warning light on dashboard, and failed regeneration cycles. Kingmay stocks DPF units for Hyundai Santa Fe (28940-2W200, $485 FOB), Kia Sorento (28940-4G000, $492 FOB), and Hyundai Tucson diesel (28940-D4000, $410 FOB). MOQ is 3 pcs for DPF units. Contact ku@kingmay-autoparts.com for stock availability.
Q: Should I choose aluminized steel or stainless steel mufflers for my market?
For coastal markets (Nigeria, Kenya, UAE, Saudi Arabia coastal cities), choose stainless steel mufflers — salt air accelerates corrosion on aluminized steel by 2-3x. Stainless steel mufflers cost 15-20% more ($48-52 vs $35-42) but last 50-70% longer in coastal conditions. For inland/dry markets (Central Asia, inland Middle East), aluminized steel is sufficient and offers better value. Kingmay stocks both materials — specify your market when requesting a quote at ku@kingmay-autoparts.com or +86 13302408528.
Q: What is the lead time and packaging for exhaust parts orders?
Standard lead time is 5-10 working days from order confirmation. Catalytic converters and DPF units are packaged in individual cartons with foam lining; DPF units additionally use wooden crates to prevent substrate cracking. Mufflers and exhaust pipes are bulk-packed in cartons of 5-10 pcs with cardboard dividers. Sea freight from Guangzhou Nansha takes 14-35 days depending on destination. For urgent orders, Kingmay offers air freight for catalytic converters and gaskets (high value, low weight). Contact ku@kingmay-autoparts.com for lead time confirmation on specific part numbers.
Q: Can Kingmay supply a complete exhaust system kit for a specific Hyundai or Kia model?
Yes. Kingmay assembles complete exhaust system kits covering manifold to tailpipe. A typical Hyundai Tucson TL 2.0L exhaust kit includes: 1 exhaust manifold (28510-D4000, $55), 1 front catalytic converter (28910-D4000, $168), 1 rear catalytic converter (28920-D4000, $92), 1 muffler (28610-D4000, $42), and 4 gaskets ($12 total) — kit FOB price approximately $369. DPF units are added for diesel models. Contact ku@kingmay-autoparts.com or +86 13302408528 with your model, year, and
About Kingmay Auto Parts
ation.About Kingmay Auto Parts
Kingmay Auto Parts is the wholesale auto parts division of Globalucar Group, based in Guangzhou, China. Established in 2013, Kingmay maintains an active catalog of 30,000+ SKUs covering Hyundai, Kia, Toyota, Nissan, and Chinese domestic brands. Our exhaust and emission parts inventory includes 80+ SKUs covering catalytic converters, exhaust manifolds, mufflers, DPF units, exhaust pipes, and gaskets for Hyundai and Kia models from 2008 to 2025.
All exhaust parts are sourced from IATF 16949-certified factories and undergo a 4-point pre-shipment inspection: substrate integrity check (visual + tap test for catalytic converters), dimensional fitment verification (flange bolt pattern and pipe diameter), weld seam inspection (100% visual for manifolds and pipes), and packaging verification. Catalytic converters are additionally tested for cell density (400 cpsi) and substrate precious metal loading certificate. Kingmay is an independent wholesaler and is not affiliated with or endorsed by Hyundai Motor Company or Kia Corporation.
Contact: Miss UU (Wholesale Director, Kingmay Auto Parts) — ku@kingmay-autoparts.com, +86 13302408528. Shop 7#, No.1542 Guangyuan East Road, Yuexiu District, Guangzhou, China.
Contact Kingmay — Request Exhaust & Emission Parts FOB Quotation & Stock Availability →
Verify Part Numbers in Our OE Library
Every part covered in this guide has a matching OE number in our reference library — grouped by system with cross-references, so you can source the exact fit for Hyundai, Kia, GM Korea and more.
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