What does Parts Trading Company do?

Parts Trading Company is India's leading importer and distributor of OEM and high-quality aftermarket spare parts for heavy-duty trucks, construction equipment, and mining machinery. We've been serving the industry since 1956.

Where are you located?

Our head office is located at 1st Floor, Vijay Chambers, opposite Dreamland Cinema, Grant Road, Mumbai, Maharashtra 400004. We supply parts across India and also support export requirements upon request.

How long have you been in business?

We've been operational since 1956 with over 70 years of expertise in heavy equipment and commercial vehicle spares.

Do you supply spare parts for all major truck and equipment brands?

Yes. We stock and supply spare parts compatible with leading global brands like Volvo, Scania, Mercedes, Bharat Benz, Komatsu, Caterpillar, Hitachi, Hyundai, Kobelco, and JCB, with over 5,000 parts available.

Do you offer both OEM and aftermarket parts?

Yes. We provide genuine OEM parts and top-grade aftermarket alternatives sourced from trusted international manufacturers. All parts are tested for performance and reliability.

Are the parts available in ready stock?

Over 90% of our catalog is available in ready stock, ensuring prompt dispatch and minimal equipment downtime.

Can you help source rare or discontinued parts?

Yes. We specialize in locating hard-to-find and discontinued components through our global supplier network.

How can I request a quote?

Share your part number, description, or equipment model via phone (+91 98210 37990), email (parts@partstrading.com), or the contact form on our website.

Do you offer delivery across India?

Yes. We ship to all major Indian cities including Mumbai, Delhi, Chennai, Hyderabad, Kolkata, and others. International shipping is also available on request.

What premium component brands do you supply?

We offer components from globally recognized manufacturers such as DAYCO, DPH Germany, FAG, INA, FERODO, WABCO, FTE Germany, LUK, VALEO, HELLA BEHR, SANDEN PRASHANT, HENGST Germany, HALDEX, MONROE, SPICER, UNITRUCK, and VTRACK Italy.

What types of heavy equipment and machinery do you supply parts for?

We supply spare parts for excavators, bulldozers, heavy trucks, wheel loaders, crawler cranes, mining equipment, construction equipment, and transport vehicles across mining, construction, and transport industries.

Is this Volvo 3987121 Spring Brake Chamber / Diaphragm Brake Cylinder compatible with my machine?

This part is designed as a direct replacement for Volvo OEM part 3987121. It is manufactured to meet or exceed OEM specifications for fitment and performance.

Does Parts Trading Company ship 3987121 internationally?

Yes, we ship Volvo 3987121 and other heavy machinery parts to over 100 countries including USA, Canada, Australia, Chile, and across Africa.

What is the warranty on this replacement part?

All our aftermarket parts come with a standard warranty against manufacturing defects. We stand by the quality of our products.

VERIFIED FITMENT In Stock

Does PTC ship 3987121 to my location?

Yes, we ship to over 100 countries daily. Our logistics partners (DHL, FedEx, Maersk) ensure fast delivery to mining sites and workshops in your region.

Brake System

Volvo 3987121 Spring Brake Chamber / Diaphragm Brake Cylinder

⚠️ Is your truck showing these symptoms?

Audible air leaks (hissing sound) from the chamber
especially when brakes are applied or released.
Brake dragging on one wheel
leading to overheating and excessive brake pad wear.
Parking brake fails to release
even with full system air pressure.

Shop the genuine OEM equivalent Volvo Spring Brake Chamber 3987121. Fits Volvo FH & FM series trucks on the 1st and 3rd axles. Replaces part 1618594.

🔧 Technical Specifications

Part Number	3987121
Part Type	Spring Brake Chamber / Diaphragm Brake Cylinder
Make	Volvo
Application	European Trucks, Volvo FH/FM Series
Compatible Models	FH 12, FM 7, FH 16, FM 10
Axle Position	1st & 3rd Axle
Interchange Part Numbers	1618594, 1618593, 1618592, 6212188
Warranty	12 Months

Parts Trading Company
Serving the Industry Since 1956 | 100% Fitment Guarantee

Technical Specifications

Part Number	3987121
Part Type	Spring Brake Chamber / Diaphragm Brake Cylinder
Make	Volvo
Application	European Trucks, Volvo FH/FM Series
Compatible Models	FH 12, FM 7, FH 16, FM 10
Axle Position	1st & 3rd Axle
Interchange Part Numbers	1618594, 1618593, 1618592, 6212188

Get Pricing

PTC Guarantee

✓ 30-Day Warranty
✈ Global Shipping
★ OEM Spec Match
★ Ships to your location & Worldwide

Related Volvo Parts

Volvo

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Best Price Call Expert

Volvo 3987121 Spring Brake Chamber / Diaphragm Brake Cylinder

⚠️ Is your truck showing these symptoms?

🔧 Technical Specifications

Technical Specifications

PTC Guarantee

Related Volvo Parts

20459839

3098488

22275091

17254012

Our Legacy Since 1956

Our Journey

Company Founded

Expansion Era

Modernization

Digital Transformation

Industry Leader

Key Achievements

70+ Years Experience

5000+ Parts Catalog

24/7 Support

Nationwide Network

Volvo 3987121 Spring Brake Chamber / Diaphragm Brake Cylinder

⚠️ Is your truck showing these symptoms?

🔧 Technical Specifications

Technical Specifications

PTC Guarantee

Related Volvo Parts

20459839

3098488

22275091

17254012

Before You Leave

Our Legacy Since 1956

Our Journey

Company Founded

Expansion Era

Modernization

Digital Transformation

Industry Leader

Key Achievements

70+ Years Experience

5000+ Parts Catalog

24/7 Support

Nationwide Network