The 2.0-liter Honda K20A gasoline engine was produced by the company from 2000 to 2011 and was installed on such popular concern models as the Accord, Civic and Stream minivan. This power unit had a rather impressive number of different versions and modifications.
The K20A engine is a modern, four-cylinder, two-liter inline gasoline engine manufactured by Honda Motor Co. Ltd. A motor of this type is installed in many modern Honda car models. At the moment this engine is the most powerful and perfect serial engine of the Honda brand. The Compression ratio of this engine varies from model to model. The power depends on the vehicle intended for the engine installation.
The K20Z modifications are close to the K20A. The K20Z1 (210 hp) was installed in the 2005-2006 Acura RSX Type S, the K20Z2 (153 hp) in the Acura CSX, the European Accord and the Asian Civic, the K20Z3 (197 hp) in the Civic Si and Acura CSX Type S, and the K20Z4 (201 PS) in the European Civic Type R. A separate K20B version with direct injection and lean-burn combustion (156 hp) was offered in 2003-2006 only in the Japanese Stream Absolute.
K-series family: K20A, K23A, K20C, K24Z, K24A, K24W.
Specifications
| Production years | 2000-2011 |
| Displacement, cc | 1998 |
| Fuel system | injector |
| Power output, hp | 155 – 160 (K20A1, K20A3, K20A4, K20A6) 200 – 220 (K20A, K20A2) |
| Torque output, Nm | 180 – 190 (K20A1, K20A3, K20A4, K20A6) 190 – 215 (K20A, K20A2) |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.7 – 9.8 (K20A1, K20A3, K20A4, K20A6) 11.0 – 11.7 (K20A, K20A2) |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | i-VTEC |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.2 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Honda Accord 2004) — city — highway — combined |
10.3 6.2 7.7 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 150 |
The engine was installed on:
- Acura RSX 1 (DC) in 2001 – 2006;
- Honda Accord 7 (CL) in 2002 – 2008;
- Honda Accord 7 USA (CM) in 2002 – 2007;
- Honda Civic 7 (ES) in 2001 – 2005, Civic 8 (FD) in 2005 – 2011, Civic 8 (FN2) in 2007 – 2010 (K20Z4, Type R, Europe);
- Honda CR-V 2 (RD5) in 2001 – 2006;
- Honda FR-V 1 (BE) in 2004 – 2007;
- Honda Integra 4 (DC) in 2001 – 2006;
- Honda Stepwgn 2 (RF3) in 2001 – 2005, Stepwgn 3 (RG) in 2005 – 2009;
- Honda Stream 1 (RN) in 2000 – 2006;
- Acura CSX 1 (FD) in 2006 – 2011 (K20Z2, K20Z3).
Disadvantages of the Honda K20A engine
- The most famous problem with this engine is the rapid wear of the exhaust camshaft.
- Another cause of knocking under the hood can be unadjusted valves.
- Due to contamination of the throttle valve, idle speeds often float here.
- Also, the front crankshaft oil seal often flows and the engine mounts do not last long.
- The engines of the first years of production suffered from local overheating of the fourth cylinder.
K20A Engine Repair Parts List
| Full name of the part | Part code |
| Piston rings Honda K20A/K20B d.86.0 STD 1.2-1.2-2.0 (13011-PNE-G02) (4 cylinder) TP | 32399-STD |
| Upper gasket set Honda K20A Payen | CG5810 |
| Head gasket | AG5810 |
| Head gasket Honda K20A (12251-PNC-003) Elring | 270.340 |
| Valve cover gasket | 270.380 |
| Valve cover gasket | HM5267 |
| Valve cap inlet Honda color code “white” (12210-P45-G01) Elring | 130.560 |
| Oil scraper cap | 130.860 |
| Valve stem seals (130.860+130.560) | 084.300 |
| Stuffing box | 81-53338-00 |
| Stuffing box 80x98x10/7.7 (614 830) Elring | 590.797 |
| Basic liners Honda Accord 2.4i 16V K24A 10.2002- (13321-PNA-003/004) Taiho | M469A-STD |
| Semi-rings persistent Honda Accord 2.4i 16V K24A 10.2002- (13331-PNA-004) Taiho | T469A-STD |
| A / C Compressor Solenoid Honda CRV 2002-> | 38924-PND-006 |
| A / C compressor pulley Honda CRV 2002-> | 38900-PNB-006 |
| Spark plug DOUBLE COPPER (RC9MCC4) Champion | OE089 /T10 |
| Spark plug MULTI-GROUND (RC8DMC) Champion | OE026/T10 |
| Oil filter Ford/Honda h=87.0 d=66.0 Champion | F126 /606 |
| V-ribbed belt 7PK1760 AE | MVB1760R7 |
| Head lamp HB3 | 091 212 115 |
| Stop light 12V 21/5W W3x16Q, four pin (for Japanese) (Osram 7515, Philips 12066) Monark | 091 612 154 |
| Stop light 12V W5W 2,1×9,5D (Osram 2825, Philips 12961) Monark | 091 712 033 |
| Mini fuses set 6 things (5A-15A) Monark | 099 837 975 |
| Complete set of Honda gaskets K20A4 (06110-PNL-E00 + 06110-PPA-000 + 06114-PNA-040) Eristic | EF6543 |
| Water pump assembled | 50005902 |
| Basic liners upper Honda K20A/K24A STD (1 half ring) (13323-RAA-A01) Original | 13323-RAA-A02 |
| Base liners, bottom Honda K20A/K24A STD (1 half ring) (13343-RAA-A01) Original | 13343-RAA-A02 |
| Connecting rod bushings Honda K20A/K24A STD (1 half ring) Original | 13213-RAD-Y01 |
| Semi-rings persistent | 13331-PNA-004 |
| Fuel filter Honda Accord 1.8i-2.2i 16V, Civic 1.5i-1.8i 16V KS | 50 013 824 |
| Upper Gasket Set Honda Civic K20A3 Payen | CG8130 |
| Lower gasket set | 06114-PND-010 |
| Valve guide | G11472 |
| Valve guide | G11513 |
| Timing kit Honda K20A6 (chain + tensioner + dampers + 2 sprockets) (14401-PNA-004) FAI | TCK189NG |
Frequently asked questions about the Honda K20A
How much power does the Honda K20A make?
Power output of the Honda K20A, hp: 155 - 160 (K20A1, K20A3, K20A4, K20A6); 200 - 220 (K20A, K20A2). Torque, Nm: 180 - 190 (K20A1, K20A3, K20A4, K20A6); 190 - 215 (K20A, K20A2).
How much oil does the Honda K20A take and which one?
Engine oil capacity: 4.2 liters. Recommended oil: 5W-30.
Does the Honda K20A have a timing belt or chain?
The Honda K20A uses a timing chain.
Is the Honda K20A turbocharged?
No, the Honda K20A is naturally aspirated.
Does the Honda K20A need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Honda K20A last?
The typical lifespan of the Honda K20A is ~300 000 km with proper maintenance.
What is the fuel consumption of the Honda K20A?
Honda Accord 2004: city 10.3, highway 6.2, combined 7.7 L/100 km.
What cars was the Honda K20A installed on?
Acura RSX 1 (DC) in 2001 - 2006; Honda Accord 7 (CL) in 2002 - 2008; Honda Accord 7 USA (CM) in 2002 - 2007; Honda Civic 7 (ES) in 2001 - 2005, Civic 8 (FD) in 2005 - 2011, Civic 8 (FN2) in 2007 - 2010 (K20Z4, Type R, Europe); Honda CR-V 2 (RD5) in 2001 - 2006; Honda FR-V 1 (BE) in 2004 - 2007 and 4 more (see the full list above).
What are the common problems of the Honda K20A?
The most famous problem with this engine is the rapid wear of the exhaust camshaft. Another cause of knocking under the hood can be unadjusted valves. All known problems.
