21808529 Gasket Kit | Genuine Volvo Penta Part

🔧 Product Description

Volvo Penta lists this part as the gasket kit supplied inside its published overhaul kits. It appears in 4 of them: 3842346 for TD720GE (Tier 1), TAD720GE (Tier 1); 877646 for TAD720VE (Tier 2), TAD721VE (Tier 2); 3843580 for TAD720GE (Tier 2); 3843791 for TAD721GE (Tier 2), TAD722GE (Tier 2).

🚤 Compatibility

Typically suits:

• Volvo Penta TD720VE PP

• Engine Family: TD
• HP Range: Approximately 120-250 HP
• Year Range: Approximately 1990s-2000s

⚙️ Key Features

• Broad engine-reconditioning gasket assortment
• Supplied without the cylinder-head gasket
• Documented exclusions prevent duplicate gasket ordering
• Covers D5A, D7A, D7C, TAD5 and TAD7 engine families
• Engine type: Volvo Penta inline 4-cylinder and inline 6-cylinder mechanically or electronically controlled diesel
• Listed by Volvo Penta as the gasket kit in its overhaul kits
• 1 off in overhaul kit 3842346 (TD720GE (Tier 1), TAD720GE (Tier 1))
• 1 off in overhaul kit 877646 (TAD720VE (Tier 2), TAD721VE (Tier 2))
• 1 off in overhaul kit 3843580 (TAD720GE (Tier 2))
• 1 off in overhaul kit 3843791 (TAD721GE (Tier 2), TAD722GE (Tier 2))
• Volvo Penta lists it as including inlet/exhaust, de-carbo and turbo connect gaskets plus additional gaskets
• Published gasket kit content: inlet/exhaust, de-carbo, turbo connect, additional gaskets
• Used in overhaul kits: 3842346 x1 (TD720GE (Tier 1), TAD720GE (Tier 1)); 877646 x1 (TAD720VE (Tier 2), TAD721VE (Tier 2)); 3843580 x1 (TAD720GE (Tier 2)); 3843791 x1 (TAD721GE (Tier 2), TAD722GE (Tier 2))

📋 Kit Contents

• Complete gasket and seal assortment - serviced under Volvo Penta kit 21808529
• The public kit catalogue does not assign separate orderable numbers to every internal gasket
• Valve-cover gasket - not included; engine-build-specific part ordered separately
• Cylinder-head gasket - not included; engine-build-specific part ordered separately
• Oil-pan gasket - not included; engine-build-specific part ordered separately
• High-pressure-pump-to-cylinder-head gasket - not included; ordered separately

🔌 Function

The kit renews the static seals opened during major engine service while allowing the correct head, rocker-cover and sump gaskets to be selected separately.

⚠️ Common Signs of Failure

• Oil, coolant or boost-air leakage from opened joints
• Gaskets are brittle, crushed or torn
• Engine is undergoing a major strip-down
• Exhaust or intake joints leak
• Old seals cannot be reused after disassembly

🛠️ Service Notes

• Check the kit contents against the joints you are actually opening before you start, and lay the parts out so nothing is left in the bag
• Renew every gasket in the kit as a set; a used gasket has already taken its crush and will not seal a second time
• Clean the mating faces properly without gouging them — a plastic or hardwood scraper and a solvent are safer than a steel blade, especially on aluminium
• Fit gaskets dry unless the workshop manual for your engine specifies a sealant, and then use only the sealant it names
• Tighten the joint evenly in the sequence and to the figures given in the manual for your engine, and re-check after the first heat cycle where the manual calls for it
• Volvo Penta's overhaul kits call for one of this part

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21808529 → Supersedes 21025447 → Supersedes 20476064

OEM / Related Numbers

• 21025447 earlier number superseded by this part
• 20476064 earlier number superseded by this part
• 877644 - related upper / cylinder-head overhaul kit
• 877646 - related basic overhaul kit

Aftermarket / Verified Equivalents

• Swedish Lorry Parts: CS-447
• Aftermarket replacement kit referencing Volvo 20476064 / 21025447 / 21808529

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging