The D13 sits at the top of Volvo Penta's leisure diesel range. It is a 12.8-litre inline six-cylinder engine built on the Volvo Group's proven 13-litre platform — the same architecture that powers Volvo trucks and industrial machinery worldwide — and it succeeded the long-serving D12 as the company's big-boat engine. Every rating in the family runs twin-entry turbocharging with freshwater-cooled charge-air cooling and electronically controlled high-pressure direct injection managed by Volvo Penta's EMS 2 engine management. The three models we supply — D13-800, D13-900 and D13-1000 — span 800 to 1000 hp.
The D13's defining character is torque: the twin-entry turbo uses the energy in each exhaust pulse to build boost early, so peak torque arrives well below rated revs and stays flat across the working range. In practice that means a heavy hull gets onto the plane without drama and holds a fast cruise at relaxed engine speeds, usually in a twin-shaft installation. The same basic engine also serves patrol boats, pilot boats and other commercial craft in heavy-duty trim, which says a lot about the durability built into the leisure ratings.
The D13 range
All three D13 models share the same 12.8-litre block, twin-entry turbocharging and EMS 2 management — the choice comes down to your hull and how you run it. The D13-800 suits heavier hulls and owners cruising at more modest speeds; the D13-900 is the versatile middle rating for most large planing flybridge boats; and the D13-1000, rated at 2400 rpm where the other two peak at 2300, is the pick when you want maximum performance from the largest hulls in this bracket. At this size the engines almost always run in pairs, and the right rating is a calculation, not a guess — hull displacement, target cruise speed, gearbox ratio and propeller selection all need to line up. We run those numbers as part of any quote and confirm the result on a commissioning sea trial.
Drive options
Straight-shaft inboard
All three catalogue ratings are inboard engines for conventional shaft drive through a marine reverse gearbox (Volvo Penta specifies ZF units for the D13) — the standard configuration for twin-engine flybridge cruisers, sportfishers and commercial hulls, with Volvo Penta EVC electronic controls at the helm.
Volvo Penta IPS (pod drive)
The same 12.8-litre engine also powers Volvo Penta's largest IPS pod packages — IPS1050, IPS1200 and IPS1350, built on the same 800, 900 and 1000 hp ratings — with forward-facing counter-rotating propellers and joystick docking. IPS is a complete factory package normally specified at the new-build stage; if your boat already runs D13-based IPS, we support it with servicing and genuine parts.
Boats this family suits
Pricing, repower advice or a spec for your boat
Tell us your vessel and how you use it — we'll recommend the right model and drive, with dealer pricing.
Why buy your D13 from Mariner
Flagship 12.8-litre torque
The twin-entry turbo builds boost from each exhaust pulse, delivering massive torque from low revs. Big hulls climb onto the plane easily and hold a fast cruise at relaxed engine speeds — the reason the D13 replaced the long-serving D12 at the top of Volvo Penta's range.
Commercial-grade platform
The D13 shares its architecture with the Volvo Group's 13-litre truck and industrial engines and also serves patrol and workboat duty in commercial trim. That heavy-duty pedigree is built into every leisure rating.
Dealer-backed from quote to sea trial
As an authorised Volvo Penta dealer in Spotswood, we handle rating selection, repower surveys, installation oversight and sea-trial commissioning — then keep the engines running with factory-trained servicing and genuine parts across Port Phillip Bay and Victoria.
Volvo Penta D13 — your questions answered
Which D13 rating does my boat need?
Since all three share the same block, the honest answer is: whichever rating matches your hull's displacement, target cruise speed and duty — not simply the biggest number. An over-propped or under-rated engine works too hard; a correctly matched one lasts longer and burns less fuel. Tell us the vessel, and we'll run propeller and gear-ratio calculations before recommending a model.
Can a D13 replace my old D12, TAMD122 or other big six in a repower?
Often, yes — the D13 was designed as the D12's successor, and it's a common repower for big-bore engines of that era. But at roughly 1.6 tonnes per engine before the gearbox, fit is never assumed: engine beds, gearbox compatibility, shaft line, cooling and exhaust all need checking first. We start with a vessel inspection, then quote supply, installation and sea-trial commissioning as a complete job.
Shaft drive or IPS?
The D13 models we list are shaft-drive inboards, and for repowers that's almost always the practical path — IPS is a complete factory package of engine, pod and controls that is normally specified when the boat is built, and converting a shaft hull to pods is rarely economic. If your boat already has D13-based IPS, we service and support it as an authorised dealer.
Who services a D13 in Melbourne?
We do. Mariner Engineering is an authorised Volvo Penta dealer with factory-trained technicians, genuine parts and Volvo Penta diagnostic tooling, working from our Spotswood workshop or dockside around Port Phillip Bay. That covers scheduled servicing, warranty support and repairs for the life of the engines. Call (03) 9399 5888.
Ask about the D13 range
Tell us your vessel, how you use it, and whether this is a new build or a repower — our team will recommend the right Volvo Penta D13 model and drive, with pricing, usually within 1 business day.